Counterattack

"… Fufun, you've got quite the fighting spirit written all over your face… Fine. Want to settle it right now? As long as I don't field Adelia, I'm ready any time."

That was Yuria's offer.

"… No, let's settle it four hours from now. I'll be borrowing a room."

That was what I said, and then…

The next instant, I pushed Leone down onto the bed I'd borrowed and drove my throbbing penis into her.

"Aaaaaah!"

Leone let out a loud, sweet cry.

I hadn't been in the mood earlier…? What a stupid thing to say.

With Leone, the most erotic woman imaginable, right next to me, there was no way I wouldn't be in the mood.

My penis only swelled with excitement, hardening like iron, grinding and gouging into Leone's tight insides. What incredible pleasure it was. I shook my hips frantically, until at last…

Throb, throb, throb!

I ejaculated like magma, filling Leone's vagina. Then I pulled out for a moment.

Drip, gush…

A massive amount of semen overflowed from her down there.

"Going right back at it would be rough on you, right? This time, let me cum with your mouth and those wonderful breasts."

"Aah… y-yes, w-with pleasure…! Aah… Naoto-san, you're being so rough!"

Leone gave me paizuri. Aah… it felt good. Cumming lightly from paizuri, then having sex again and cumming for real, was the best.

I came on her breasts. It came out heavily, looking like quite a load too… no, I ejaculated and it felt incredibly good, but it was still in the pre-ejaculation phase, so to speak.

It was more like getting prepped again.

I rammed back into Leone's omanko once more.

Squeezing her ridiculously large breasts, bunyu, nuninyun, kneading them as if to crush them, I thrust my hips up hard, again and again.

"Nhaah, nhaa, ahyiii! T-too rough, this is, already… no goooood!"

"Ahaha, Beastfolk can handle rough exercise, can't they?"

"But, but, buut… t-this is…"

"You didn't have sex this rough with your previous husband?"

"I-I didn't, that person was always gentle… a-and his cock wasn't hard and thick and big like yours, Naoto-san, and not this rough either… aah… it's good, too good, I'm cumming, I'm cumming again, I've been cumming nonstop since just now and it won't stop, nyaaaaaah!"

Twitch, twitch, splash, gush!

Leone violently lost control of her bladder.

"Nhaaaaa…"

And just like that, Leone fainted.

… That was a problem. I hadn't ejaculated nearly enough yet.

… Right, when someone passed out, you did artificial respiration and chest compressions, didn't you.

I gently kneaded Leone's breasts to loosen her up.

While doing so, I kissed her.

Slurp, kuchu, chu… I carefully licked the inside of her mouth, sipped her saliva, and kneaded her breasts loose, and…

"A-Aaah… Naoto-san… I-I'm sorry, I… passed out, didn't I… What a wonderful way to wake up… I'm happy… mm…"

Leone woke up and clung to me, sucking on my lips.

"… All right, let's continue."

"… Aah, j-just… I'll do my best… b-but go easy on me…"

"All right, this time let's do it in this hole."

And then I thrust into Leone's anus.

"Nhaa, aaah, m-my butttt, it's gooood! G-gentler, slower…"

"Sorry, that's not happening."

"Hyaaaaa…!"

I thrust violently and made Leone faint a second time.

"Phew… I'm not done at all, only halfway out, nowhere near satisfied…"

"…"

Leone's eyes rolled back, and she was twitching.

… The battle was in two hours, so I figured I should probably leave it at that for now.

"Fuah… I'll get a little sleep too…"

I decided to take a brief nap… Somehow it felt like I'd be able to sleep soundly.

I held Leone's semen-sticky body and slept.

… And then, after sex came a nap, then waking, borrowing a shower, and the two of us straightening our clothes and heading downstairs.

Exactly four hours.

"… Huh, you all don't look so well."

I noticed the state Haru-kun, Setsuna, and Yuria were in… Could it be sleep deprivation? They looked unwell.

"… W-whose fault do you think it is…? In this house, everything is in plain view to me… And yet, t-that… rough…! T-that was… real… sex… So rough…"

"Haa, haa… Naoto-kun… y-you were… so cool. So… aah… yeah, you really are amazing, Naoto-kun…"

"Onii-chan… I-I always thought you were cool, Onii-chan, and I loved you. But… I never knew you could be that, that cool…"

Ah, so they'd been watching that scene.

The three of them were completely red in the face.

"All right, I'm fine now… Let's go ahead and settle this, properly."

Yuria and the others seemed to have finally calmed down.

"All right, a one-on-one match, then. So Setsuna…"

"No. Let's do a one-on-three. Can I designate the opponent too? Yuria, Haru, Setsuna. You three versus Leone."

"Eh…?"

My statement was apparently a shock to both Yuria and Leone.

"… Naoto-san. That's, even for me… They're stronger than the SR-Class LV50 trio Aike was worried about before he climbed to C-Class. Whether I alone can even win is…"

"… Even for you, that's underestimating us too much… Do you understand? The next match has no after. It's a match we absolutely cannot lose."

"… Because it's a match you absolutely can't lose, you want a match with no risk of losing? That's underestimating me too much. Without the risk of losing, it's not a match. You have no chance of winning unless three of you go up against Leone alone, so just suck it up and do it."

I said that flatly.

"… Why you…! Don't come crying about it later! If you lose at this, I'll laugh my head off! I won't go easy at all, you hear me!"

Yuria looked properly angry now.

"Naoto-san…"

Leone looked uneasy.

"If it were a first encounter that'd be one thing, but right now I have a complete grasp of their abilities and tactics. With Leone's strength, she's not the kind of opponent you'd lose to. I'll prove that even alone, Leone could pass for C-Class."

"Naoto-san…"

This time… it was a smile that seemed to trust me.

"Do your best, Naoto! Don't lose, you hear!"

"Naoto-kun, do your best!"

"Naoto! Do your best, nya!"

"Naoto-san, please don't lose."

"Hey, you all! She's my Garumon, so cheer for me!"

"… Go Yuriaaa."

"Yuria, do your beeest."

"Yuria, do your best, nyaaa."

"Yuria-san, please do your best."

Obeying her command, the four of them cheered in deadpan.

"Mukaa! Aah, geez, I'm absolutely, absolutely going to grind you to a pulp!"

Yuria was furious.

… Yeah, this kind of off-the-board tactic was necessary too. The one who lost composure lost; that was the iron rule of any match.

The first battle was one thing, but the matches after that, the winnable ones, I dropped all because of me. Luck had nothing to do with it… no, luck itself came down to whether you had the spirit to draw luck in.

The certainty that you yourself would absolutely win was what drew low-probability outcomes in and brought victory.

But…

"This match is one we can normally win. We win a normally-winnable match normally. That's all there is to it… Let's go, Leone. This is your debut."

"… Yes! A break in service is no problem at all… I'll show you a win."

Bachi, bachi bachi bachi…

Her form, clad in violet lightning, looked tremendously strong, dependable.

"A UR-Class, LV50 Garumon… an opponent at the very top as Garumon go… but it's not so easy that you can win one-vs-three!"

Yuria was full of fighting spirit too.

The match began.

"Leone, Accel Speed!"

"Yes!"

Doh!

Leone's quickness accelerated by 1.5x.

"… Hmph, opening with a buff against me is pointless. Here we go, Dark Curse!"

… And while Yuria was making that pointless preface, I was already issuing the next order.

When I looked over Leone's skill list, one description caught my attention.

Awakening 1: Recover from status ailments, with guaranteed-hit grant and the ability to optionally use another attack.

Adelia's same skill had this description.

Awakening 1: Recover from status ailments, with guaranteed-hit grant and the ability to use another attack.

The "optionally" in that description was different.

If "optional" meant… as long as there was intent behind it, it could be used at any time, couldn't it.

"Leone, Awakening! Hit Yuria with Thunder God!"

In other words, even right after using a skill, you could use another skill again. That was my thinking.

It was a shot in the dark, but…

"… Eh… I can move…!? Awakening… Thunder God!"

Leone hadn't known either, by the looks of it… but it worked.

Bachi bachi bachi…!

Violet lightning concentrated in both of Leone's hands. And then…

Dan! She charged at the speed of lightning.

"Earth Barrier!"

Haru-kun went for defense. But… Leone slipped past his side.

The guaranteed-hit grant from Awakening's effect. The guaranteed-hit-against-target effect was stronger than Earth Barrier's draw effect.

She slipped past Haru's defense and reached Yuria.

While charging, she spread both hands up and down. Right fist on the upper jaw, left fist on the lower jaw. Both hands moving in a Xingyiquan form mimicking a wolf's fangs.

"Thunder… God!"

Those jaws closed.

Zugaaaaaaan!

Tremendous destructive power struck Yuria. Thunder is double damage on Dark. Against a higher-level opponent, as a magician with poor durability, there was no way Yuria could survive.

"Guhh! W-what destructive power, one shot… and it shaved off my whole HP. But my equipment is Kanan's Spirit Garb that I took from everyone earlier! Endure, activate! Don't think you can take me down in one!"

Yuria threw off her robe in a flash. Now in the same erotic Spirit Garb appearance as Haru-kun, with a pareo wrapped around her hips.

She somehow held on at near-death. But…

"Who said it'd be just one?"

Multiply Leone's quickness by 1.5, and it surpasses Yuria's quickness by 2x.

I'd already calculated Yuria's quickness from the previous fight.

Attack at 2x quickness and it becomes a 2-hit attack: that is the rule of combat in this world.

"Haaaaa!"

Endure could just barely withstand one hit, but there was no way she could endure another.

Dogooooh!

"Kyaaaaaah!"

Even though her remaining HP was 1, massive damage exceeding her max HP slammed into Yuria.

Thud.

Yuria collapsed unconscious.

"Yuria-san!"

"Yuria!?"

With Yuria, the commander, down, Haru and Setsuna fell into chaos.

… Yes, the existence known as a Garumon-cum-Master has a weakness.

That is, when the Master is taken down, no orders can be given.

Once a Garumon's HP hits 0, they're knocked out until the battle ends.

"Bloody Masquerade."

Setsuna acted on the instructions she'd received initially.

She did do a bit of damage to Leone… but it was nowhere near enough to bring her down.

"Now, the rest is basically a clean-up match. Leone, Thunder Aura."

"Yes."

Bachi bachi bachi…! The damage healed, and on top of that, her HP and other stats went up by 30%.

"Tch… go, Golem!"

A four-hit combo. Then Setsuna's Bloody Masquerade rained down again.

But the damage was minuscule. The gap in durability was overwhelming.

Haru-kun appeared to be readying defense. He really was passive in that regard.

"Then let's attack. Thunder God on Haru-kun."

"Yes, Thunder God!"

Dogoh! Dogoh!

Even against Haru, the 2-hit combo activated.

But thunder is reduced damage on grass. With Earth Shield up too, even a 2-hit wasn't able to shave him through. Still… his HP had already dropped below half.

"W-what do we do, at this rate…"

"Haru-kun, give orders properly. Now that Yuria is down, you're the leader, Haru-kun."

"Y-Yeah. Then… L-Lullaby Serenade."

"If we put them to sleep, we win. Got it."

Setsuna played her sleep-inducing violin.

… But Setsuna apparently hadn't known. Leone had Incapacitation Resistance, probably acquired from fighting solo… Just like Setsuna. She didn't fall asleep.

So… on the next turn, I delivered a clean finishing blow to Haru-kun.

"Ugh… it's already totally out of reach…"

Setsuna alone was hopeless.

I activated Accel Speed once more, and on the turn after that…

"Thunder God, 2-hit!"

Setsuna's quickness was also surpassed by 2x, and a combo finisher landed in one turn.

"Ugh… I'm wearing Adelia's Spirit Garb too, and yet…"

Endure didn't activate. Setsuna fell.

Against Yuria's faction's best lineup, Leone won, alone.

"… Amazing, that my own skill had that kind of usage…"

"Without the difference in wording from Adelia's, I wouldn't have noticed at first glance either… What do you say? Becoming my comrade, I don't intend to make you regret it…"

"That's a given! … Aah, getting to fight for you from here on… I'm really looking forward to it!"

Leone said that and hugged me.

"Now then, Kanan, come back."

"Naoto…!"

When I called out, Kanan flew into my arms… The invisible chain returned to my hand.

Aah… Kanan.

I won't let you go now.

I held Kanan tightly.

… Well, for leveling reasons, I might have still let her go a few more times.

"… Out of all this group, Kanan-san is the one you wanted back first, isn't she."

That was what Setsuna said. Her cheeks were slightly puffed, jealousy showing on the surface.

"Well, she's been my partner for a long time… Plus, if Leone isn't going to be fielded, that makes it one-on-one. In single-unit performance, excluding Leone, Kanan is the strongest."

"…! In a one-on-one, I'm stronger!"

Setsuna snapped at me.

"… Well, if you're going to insist that much, let's make the next one-on-one Setsuna versus Kanan. Since you've barely used any skill counts, back-to-back is fine."

Yuria, who had woken up, made that decision, and I agreed.

Kanan vs. Setsuna

"… I forgive Kanan-san, but apart from that… I haven't accepted that you became Onii-chan's first partner ahead of me, his little sister! It really should have been me setting out into this world together with Onii-chan… I'll prove it by beating Kanan-san!"

That was how Setsuna burned with passion.

"In that case, if I win this match, will you accept that the one suited to Naoto is me? Then I can't lose, can I."

Despite being lower in level, Kanan wore an expression with a touch of composure.

"Bloody Masquerade!"

"Wind Shield!"

Kakiiin!

Wind Shield could block physical damage, but slip damage penetrated. If slip damage just kept stacking, Kanan looked like she had the worse end of it. But…

"Kanan, Wind's Blessing. Setsuna's quickness is 52～53, so either way, two casts of Wind's Blessing will surpass it. After that, just keep using Bind Whip. If we lock her down at the expected 70% probability, Kanan wins normally."

I deliberately explained the strategy loudly enough for the other side to hear too.

"…! How do you know my quickness…?"

"No, you can grasp quickness easily by just watching action order. From there, factoring in stat changes from speed buffs and calculating, you can narrow it down. What matters is whether your quickness becomes 2x the opponent's, so grasping the opponent's quickness is essential."

"… A-as expected of Onii-chan…"

"… Tch, you're good… but it won't go according to that calculation. You don't know about this skill. Setsuna, Symphony of Brilliance!"

"… Yes! Symphony of Brilliance."

Sharararara…

Setsuna played a beautiful violin, and her body shone with light.

… So she stacked buffs. And on top of that, a strong buff to all stats…

This clearly threw off my calculation.

If attack and defense rose, slip damage would rise and her margin would thin, while damage dealt would drop and the time to take her down would lengthen.

The original calculation that Kanan could beat Setsuna no longer held.

But I didn't drop my faint, easy smile.

"… Oh well. I thought we'd win by probabilities and Kanan would have nothing to do, but it looks like you can put up a bit of a fight. Kanan. I'll have you do a little dodging and a little landing of hits. If you do that, we'll win."

I said this out loud.

"Yes, of course. If I let you carry me to victory, Naoto, I can't really call myself a partner!"

Kanan, trusting me, said that too.

In actuality, the conditions were harsh: dodging almost every attack while landing every shot of her own, and yet she said it nonchalantly.

What I was going to do didn't change. Stack Wind's Blessing until she surpassed Setsuna's quickness.

After that, use Bind Whip to lock Setsuna down without letting her move.

How many times did she need to stack Wind's Blessing again? If the Symphony of Brilliance buff was 2x, 106. If 1.5x, 79.

2x… if that buffs multiple stats, it'd be too strong for a skill of this rank.

… So it had to be 1.5x. In which case, things got a little tricky. With Kanan's quickness of 40, stacking Wind's Blessing four times brought it to 88.

That surpassed Setsuna's quickness.

But in the meantime, if she didn't dodge almost all of Setsuna's attacks, she couldn't win.

Wind's Blessing's evasion rate is 30%. In a normal game, impossible. Done for.

… But this isn't a normal game. It's a Garumon battle.

And the one fighting wasn't a normal game character. It was Kanan Kazami.

… Aah, I didn't know what it was. Right then I felt a tremendous sense of security.

The certainty that we'd win. Trust in Kanan. This was what drew low-probability outcomes in and brought victory.

"Kanan, you've been watching Setsuna's movements… Setsuna's movements are actually monotonous. Tan, tatan, tan. She attacks with this rhythm every time. Maintain a fixed distance between yourself and Setsuna. If you do that, you can dodge all of her attacks."

"… Got it. I'll show you I can do it!"

That was the instruction I'd given Kanan.

"Wind's Blessing."

"Bloody Masquerade!"

Setsuna stepped in. Tan, tatan, tan!

But matching the rhythm, Kanan elegantly back-stepped to dodge Setsuna's attack.

"… Tch."

Setsuna's attack swung through air, and she groaned. Kanan smiled boldly.

Next turn.

Fyu.

Another kick from Setsuna.

Kanan dodged it with a back-sway.

"How come…!"

In her anger and impatience, Setsuna hadn't noticed her attack timing was becoming monotonous.

Meanwhile Kanan was seeing well. At first, her eyes hadn't been used to Setsuna's speed and she'd been confused, but by now they were starting to adjust.

The rest came down to her trust in me. Up till then, how many fights had we fought through together under my orders?

… For Kanan in that moment, obeying my instructions was easy.

"Take this!"

An impatient Setsuna repeated similar actions and was dodged similarly.

"H-hey… why don't they hit!? This is weird! Wind's Blessing is 30% evasion, isn't it!"

Yuria too looked confused.

No, this was the Skill-less Skill, "Evade."

This was the moment when she should've calmly advised her to shift her timing a bit, but Yuria, in her confusion or whatever, couldn't offer that kind of useful advice.

… Whether the one issuing instructions stays calm or not makes that much of a difference.

The next was the last of the repetitions.

"This… gh!"

In the end, Setsuna's attack swung through empty air once more.

The monotony of Setsuna's attack rhythm was something we'd have to train and correct from there on.

… After all, once that match was over, she would become my comrade.

"Bind Whip!"

"…! First strike… ah!"

Damage to Setsuna. And then the whip wrapped around her, stunning her.

"Tch… you actually went and… pulled it off…"

Not exactly as planned. From there on, Kanan had to land 8 in a row, and if she took 3 hits before that, with slip damage's effect compounded in, Kanan would fall.

… But with the way Setsuna and Yuria were rattled by then, pulling it off didn't seem impossible.

YOU WIN

"Did you see that!? Naoto!"

"I saw, Kanan!"

We hugged each other and rejoiced together. Aah… that was it.

You can't go in thinking there's no way to win against a level gap. That kind of attitude is no good.

If I trusted them and they brought out all their strength, surely we could beat any enemy.

I swore in my heart that I'd never let them lose miserably again.

Just then…

Kanan's body began to shine, pikaaa.

"Wa… what's this?"

"Erm…"

I called up the system.

Kanan Kazami's LV has risen to 30.

Class change available.

Otherworld Wind User

Class change?

Yes No

That was the message displayed.

"Heh… Wind User."

Yuria came to peek at the screen… Hey, you're technically an enemy, you know. Well, whatever.

"Do you know what a Wind User is?"

"Wind User is the Advanced Job for an expert in wind magic… So she was holding her own against us without even being an Advanced Job yet…"

"I see… is there any merit to choosing No here?"

"I don't think so. You'd only choose No if you weren't satisfied with the class change destination. For example, if you were running her as an Attacker-cum-Defender, but the class change destination was limited to attack-specialized, you'd be in trouble because you'd have to change your tactics… Even in such cases, since class changing significantly strengthens combat power, the merits outweigh the demerits, and there's no guarantee that another class change opportunity will come right away if you decline, so most people decide to change operational policy and just take it. Kanan's Wind's Blessing and Wind Shield are both wind magic, so wind magic being strengthened is purely a combat-power increase. I don't think there's any reason to decline."

Yuria gave that advice.

"… But, well, if you're saying you can't trust an enemy's advice, that's fine too?"

Yuria, having said a bit too much, tacked that on, sounding embarrassed about trying to cover for it.

"No, I'm convinced too… thanks, Yuria."

I selected Yes.

Bind Whip's count has increased by 5.

Storm Cannon learned. Which skill will you forget?

Oh, she learned a strong-looking skill. Long-press the skill name to check stats.

Storm Cannon 5 Wind single-target super-large damage, first-strike activation

… It looked strong. Now that her skill count had grown to 9 types, I'd have to start trimming unnecessary skills.

"Bind Whip's count went up too, so the original early skill, Whip Strike, can be dropped, I guess…"

"… Right, I think that's fine."

Yuria naturally consulted with me.

Whip Strike has been forgotten.

And so Kanan's stats changed.

"I did it, I caught up to Adelia and Maika in Value!"

Kanan was overjoyed. The 500-Value gap was the class gap.

Now then, from there we entered full-on training mode.

The one we brought back that time was Lyuka. For everyone's leveling-up purposes, we added Lyuka, the lowest-leveled. From there, we kept trading wins and losses many times over.

In a 2v2 with low-level Lyuka mixed in, we couldn't realistically win, and as for the monotony of Setsuna's attacks, we'd be in trouble if it stayed a habit, so I taught her to fix it.

Once Setsuna consciously shifted her rhythm, that kind of complete shutout would become impossible, and easy one-on-one wins against her would no longer be doable.

So we ended up engaging in seesaw battles back and forth. I'll skip over that endless trial-and-error…

… And so, with a victory after some umpteenth defeat, I obtained Setsuna.

Aah, at last… my beloved little sister, the one I'd come to this land together with, then been parted from, unable to meet, was back in my hands…!

"Onii-chan…! Finally, finally!"

"Setsuna…!"

Hug… squeeze…

We firmly embraced each other.

Setsuna was also in her Spirit Garb appearance, so her almost-bare chest pressed up against mine, and my erect penis pressed against her stomach… but while we were both keenly aware of it, we kept hugging without minding.

"I missed you, Onii-chan… I'd been worried the whole time…"

"Me too. I really was worried, Setsuna…"

I stroked Setsuna's hair. Setsuna's lightly pigmented hair could even look slightly silver. Surely it was because this hair color was so beautiful that it hadn't changed even after coming to this world…

I gently stroked that hair and her beautiful face, savoring the nostalgic feel of it.

"Aaah… Onii-chan…"

Setsuna let out melting, sweet sighs.

"Just like I saw at first… you really aren't injured anywhere?"

"Yeah, I'm okay. Haru-kun and Yuria… were both very kind to me."

I checked her body up close once again.

Yeah… just like before, not a single wound, not a single blemish, perfectly translucent skin like white porcelain.

"Hau, uun… Onii-chaaan…"

"Yeah… just like before, you're really beautiful, Setsuna…"

"Aah… Onii-chan, I'm so happy… look more, Onii-chan… like before…"

"Yeah, Setsuna…"

I pushed Setsuna down.

And then I touched those soft breasts.

"Aaah…"

How meltingly soft they were…

And wonderfully large too. I felt like my brain might melt at that meltingly soft sensation.

"… Um, Naoto…? It might not be my place to ask, since I'm with another Master right now, but…"

At that point, Kanan, over by Yuria, opened with that prefacing question.

"Naoto-kun… did you really, in our original world, do this kind of thing… with Setsuna-chan?"

Maika, who was beside me, asked timidly.

"Erm, in the original world…"

Munyu, munyu…

"Now that you mention it, no, we didn't."

I'd been a bit of a sis-con, and Setsuna had been a bit of a bro-con too, but…

We were normal siblings. Groping breasts like this was a step too far.

"I-I see… t-then, that's good. I'm sorry, sorry to interrupt."

"… Yes, that's good. That Naoto-kun isn't someone who does indecent things with his little sister… of course I believed it."

"Then, please continue. Sorry for interrupting your important confirmation of how good her breasts are to grope…"

The two apologized and withdrew.

"Ahaha, no worries. Well, in our original world, if siblings did this kind of thing, it'd be a serious problem."

I said that and laughed.

And then I savored the texture of Setsuna's breasts.

Furthermore…

"Mm, hamu, juru, n…"

I savored even the taste of her lips. With Setsuna… in early childhood, I'd kissed her, I thought.

But from around the upper grades of elementary school, as Setsuna's beautiful-girl quality only accelerated, somehow it had become embarrassing, and I'd started refusing.

That Setsuna's lips… aah, how delicious. To think the me of the original world had been holding back from such a delicacy. What an idiot.

I tasted Setsuna's soft tongue with the tip of my own and sipped her saliva.

"A-aaah…"

Setsuna was clearly feeling great, her nipples stiffening up too.

"Haaa… O-Onii-chan… s-soon… want to try cumming with your cock, in my mouth…?"

Setsuna proposed.

"… Really? Since this is our long-awaited reunion as siblings, you can take it slow."

"Geez, Onii-chan. In this world, for a slave to be slow in servicing her master's cock is shameful as a slave… It would also bring shame on Yuria, that her previous master's training was poor…"

"You're not a slave, you're my sister."

"Geez… I'm happy that you say that, but no one else in this world will understand. I'm a proper Garumon now too, so let me carry out my mission as Onii-chan's slave properly."

That was her plea.

"If you insist that much, then I'll be in your care."

I thrust my erect penis at Setsuna.

… Well, I'd been erect to the limit since earlier, so Setsuna's proposal was a godsend.

Honestly, getting that rock-hard for my own little sister gave me pause…

"Wow… s-so big…"

"Ahaha… Really, the previous me, with such a sexy, cute little sister under one roof, I can't understand at all how I managed not to explode. And without Leone to relieve me, no less…"

"Ahaha. But from now on, I'll properly make Onii-chan cum, nice and properly. Onii-chan praised my violin as that of a genius… but I'll show you the genius side of my fellatio too."

And then Setsuna latched onto my penis.

…!

… Amazing, this was… genius-level…!

Honestly, fellatio from anyone is incredibly good. There's some difference in skill, but if it was unskilled, then bad-in-an-arousing-way wasn't a problem. That was about how I'd thought of it.

But Setsuna's fellatio was artistic in its excellence, perfectly stimulating my penis, building me up, and leading me to ejaculation.

"Uaaaah…!"

Byukku, throb, throb!

It was overwhelmingly pleasurable.

"Mm, nfuu…"

Slurp slurp, gulp…

Even Setsuna's cum-swallowing form was perfectly beautiful.

"Setsuna… more than violin, you might have more talent for wind instruments…"

"Aha, you think so too, Onii-chan? If a cock counts as an instrument… I think I have a sense for it myself～. If we get back to our original world, maybe I'll start brass band too."

Setsuna said that and laughed.

That laughing face was the same lovable innocence of my little sister from the original world, and I felt deeply relieved.

"… But I… don't dislike this world. You see, in this world… apparently the taboo on incest doesn't exist."

Setsuna whispered that into my ear.

… So that meant, in this world, Setsuna and I could even get married…?

"Aah… thank goodness, Setsuna-chan… at last, you got to reunite with your beloved Onii-san. I'm really glad… congratulations, Setsuna-chan…!"

"Fufu… congratulations, Setsuna… I'm glad."

Haru-kun and Yuria watched the scene with truly happy expressions.

In their eyes, you couldn't feel even a trace of negative emotions like jealousy, sadness, or anger.

Rather than coming from the size of their hearts… it was almost like the gentle smile of someone celebrating a dear friend they'd been rooting for finally fulfilling their long-time first love.