Everyone's Growth: Setsuna / Luna

"Phew…"

I let out an unsettled sigh. Today, too, I'd left the monster subjugation to Haru and Yuria while I stayed back at home.

I tried to set aside about one day a week like this. If I didn't take at least a little time off, I wouldn't last.

"Geez… You don't have to worry that much. Haru-kun and Yuria will be just fine."

So Setsuna covered for me.

"Yeah… I trust the two of them, and everyone else is with them too. I know they'll be fine, but…"

Still, there was no point spending my hard-earned day off fretting.

"All right. Guess I'll put it out of mind for a while and rest."

"Yeah. I'm here with you today, after all."

At my words, Setsuna smiled.

Setsuna… my beautiful, beloved little sister.

Ever since I was born, I'd cherished her and held her dear. The most precious person in the world to me.

And my relationship with her… seemed to have changed quite a bit since coming to this world.

But still…

"Want me to play something for you for a change?"

Setsuna offered, and produced a violin with a smooth motion.

The high-end violin (worth about ¥4,000,000, I think) that should still have been at our parents' house had somehow appeared in Setsuna's hands.

The mechanism behind these Garumon equipment items was truly mysterious, but apparently she could summon them at will whenever she wanted, even outside of using a Skill.

"Yeah, please do."

At my words,

"Then please, listen well."

Setsuna gave a little bow, and…

Sharara～… began playing a familiar masterpiece.

… Ahh, somehow… it took me back.

Back when she'd had spare time on her days off, she would often play for me like this.

I'd taken music lessons too, back in childhood. The only thing I'd ever been praised for was keeping accurate rhythm, and I was actually the one who'd first taught Setsuna the basics of music when she was little.

Well, after that, I'd fallen completely behind her improvement.

So I figured I could listen with at least some discernment. I had ears that could tell how wonderful Setsuna's playing was, and…

I really was glad of that.

… Well, the beauty of Setsuna's playing form combined with it might have been making it sound even more beautiful than it already was; I couldn't deny that.

Setsuna had been a violinist of genuine genius. Her future had been so promising, with the days of playing in packed concert halls and bathing in thunderous applause practically guaranteed to her.

For her sake, no matter what I had to sacrifice, I wouldn't have minded…

That was how I'd felt about my beloved little sister.

Hearing such beautiful playing, a tiny… pang of regret welled up. Maybe she really should have returned to the original world and bathed in the praise she deserved.

But, even though it was this wonderful, in Setsuna's generation, performers above Setsuna's level apparently did exist on Earth.

That was part of why Setsuna said she had no lingering attachment to Earth.

That was at the world-class level, though. If you allowed combining looks and performance, no one would have come close to Setsuna. On those grounds, I thought she was sorely missed…

Well, it was a good thing she had no lingering attachment to the original world. The two of us had no intention of going back anymore.

Clap clap clap…!

"… Ahh… that was wonderful, Setsuna."

At least with my one pair of hands, I praised her with thunderous applause.

"Thank you, Onii-chan… Ehehe, I'm really happy right now.

"More than being praised by anyone else, more than anything, there's nothing that makes me happier than bringing joy to my beloved Onii-chan and my beloved companions…"

Setsuna smiled. Seeing that smile of heartfelt happiness… I decided to stop regretting any further.

Just as I received the greatest happiness from Setsuna and the others, Setsuna received the greatest happiness from me and the others.

It was just that, somehow, in front of Setsuna, I tended to belittle myself.

"Thank you, Setsuna… But, even after listening to such a moving, wonderful performance from you, getting all worked up over your charm again and ending up this hard is a little embarrassing…"

I scratched my head as I said it.

"Ehehe… I'm happy. That's even more wonderful praise than applause or anything else…"

Shuru, pasa…

And then Setsuna bared her body, more beautiful than her playing, and clung to me.

Zupojupojupu…

The relationship between Setsuna and me… The biggest change of all, of course… was that we'd come to have sex.

Doing it as siblings was a taboo. I knew that.

The most beloved, the most precious sister in the world to me.

Doing something that might hurt her, I of all people couldn't allow that.

But, ahh… if that was so, then why did it feel this good?

When I held her tight and pressed my hips against hers, very smoothly, with no resistance at all, I plunged all the way in.

And yet there was no way she was loose. The grip itself was actually intense to a terrifying degree.

It was as if everything about my penis, its size, its angle, had been custom-tailored to fit, which was why it got sucked in like she was clinging to me.

Honestly… I couldn't help thinking it was as if God had prepared this for me, just to make me feel good.

My little sister's omanko, Setsuna's omanko, omanko…!

I couldn't think about anything anymore, just swung my hips back and forth and savored the intense pleasure to my heart's content.

"Haa, ah, aaah… Onii-chan… Onii-chan…"

If anything could draw my attention, it was Setsuna's adorable, pleasure-crazed expression and her swaying breasts.

I gently touched her breasts, lost in the dream-like sensation of those big, melting-soft mounds, and pressed my lips against hers.

"Nn, hamu, nnh…"

Chu, juru, chu…

Setsuna stretched her tongue out too. I extended mine, slurped up her saliva, then poured my own into her mouth and let her drink.

"Nn, fuuu…"

Setsuna let out a happy sigh.

… All right, I'd caught one final breath.

"Then… here comes the home stretch."

"Yeah…! Onii-chan, come!"

And I pulled my mouth away once and started moving my hips vigorously.

Zu… pan! pan! pan!

The kind of sex where I slammed my hips against her hard!

The intense pleasure made my brain go numb. But Setsuna was clearly feeling the same or even more.

"… …!"

She seemed to be feeling it so much she couldn't even let her voice out.

On the verge of climax from the pleasure, she stuck out her tongue and rolled her eyes back, looking like she might faint at any moment.

"A, aah, aaaah…"

Even I could only groan like a beast. The intense surge of pleasure was like magma I couldn't hold back any longer, and then…!

Doku, doku, doku!

I ejaculated like a volcanic eruption.

"… … Aaaaaah…!"

At the same time, Setsuna let out a moan that seemed wrung from the depths of her throat, and reached a deep climax.

My beloved sister, the one I wanted to protect, the precious one… Whether it was really okay to have sex with someone like that, as long as I was someone born in modern Japan on Earth, I'd probably never wipe that doubt away.

But the fact that such a faint sense of guilt actually fanned my excitement on the flip side, I couldn't deny that either, which only fanned the guilt more, and then I'd get more excited from that…

No, sex with Setsuna had a hold on me as intense as a narcotic.

Well, fine. Even with a sliver of guilt… that feeling, and the feeling of loving Setsuna, having sex with Setsuna, and wanting to one day get her pregnant, they didn't contradict each other in the slightest, and were only shining all the more intensely.

And then, holding Setsuna to my chest…

I idly checked Setsuna's status.

Since she sometimes learned new Skills after sex, I'd kind of fallen into the habit of checking her status during this post-sex relaxation time.

Then…

"!?"

The already-powerful March of Exhilaration had become even more powerful!

Strength + Speed: it was the effect our party had wanted most.

… This had become incredible!

"Wah… I got stronger."

"Setsuna… amazing. Yeah, you got stronger. Setsuna…!"

I was so happy I hugged Setsuna tight.

"With this, maybe I can be more useful to you, Onii-chan.

"… Ehehe, you know, being able to be useful to Onii-chan as a Garumon, like I am now, that's the happiest I've ever been."

Setsuna smiled at me.

That was right. As a musician, I couldn't take her to the heights.

But on those terms, her wonderful talent as a Garumon was something only I could draw out.

"Yeah… let's go together. I'll take you to the heights, Setsuna, no matter how high they go."

"Yeah!"

After all, the battle of us siblings had only just begun.

 

*

 

"Ah… Naoto-kun!"

When Luna met me, her face lit up in a brilliant smile.

Hmm, back in the day I'd watched the dramas she appeared in and thought, wow, that Angel Luna sure is beautiful, and she's such a good actress, isn't she amazing～, or things like that.

Her acting as a maiden in love had been truly adorable, and had charmed many men, myself included.

But looking at her now, I realized that her acting itself actually hadn't been all that great.

She'd just been overwhelmingly charming, plain and simple.

Or maybe she just hadn't known how she ought to act.

Angel Luna, now a real maiden in love, was beautiful, vibrant, adorable, and charming on a level the her on TV couldn't even compare to…

That all of that beauty was being directed at me was almost unbelievable.

But when she came straight at me, threw herself into my arms, and pressed her lips against mine without hesitation, there wasn't the slightest room for doubt.

"Nn, hamu, nchu, Naoto-kuun…"

Rero, chu, kuchu…

Luna's voice, the one that had charmed every man, called my name as she licked at my lips and slipped her tongue into my mouth.

The feeling of her sweet tongue pushing into my mouth was wonderful no matter how many times I tasted it; my brain felt like it was melting.

"… Puhaa… Ah, I-I'm sorry. When I saw you, Naoto-kun, I just couldn't help…"

Luna gave a bashful little smile and bowed her head.

"Ahaha, totally fine. Getting kissed by you, Luna, makes me happy."

"… Geez, Naoto-kun. You shouldn't sell yourself short like that.

"All of us are working hard every day, dreaming of receiving a reward from you, after all."

She actually scolded me back. Hmm…

No, maybe so. If I thought about it from the opposite position, I could understand a little.

For example, a tutor… For some reason, the image that came to mind was Yuria's mother, Almaria-san.

Suppose Almaria-san told me, "I'll let you grope my breasts if you get a good score on your test."

Well, I'd put in everything I had, no question.

But if she let me grope her breasts even when I'd done nothing…

I'd be super happy. I'd happily fondle those bountiful breasts and figure out how different, or how similar, the touch was compared to Yuria's… I'd enjoy myself plenty.

But the drive to study would probably go down a bit… maybe.

Getting to grope her breasts would still be wonderful, and I'd still study after, but if what I'd been savoring as the drive when I produced results was simply handed over with no effort, I might end up a little dissatisfied.

"I see, fair rewards and fair punishments. Thanks, Luna. I'll be careful."

Having been a slave once, I'd basically had no confidence in myself. So that lack of confidence, the "someone like me" mentality, hadn't been completely cleared up.

But to everyone now, I myself was the very reward, so maybe I shouldn't grant it so casually.

"… But on those grounds, you're plenty worthy of a reward, Luna.

"There's the leveling matter too, but lately you've been at it nonstop, with B-Class matches and monster subjugation."

Luna, of the God-element, the strong race of Angel, was already a powerful asset even before reaching LV50, and…

For the A-Class match, and the Ursula match beyond that, I had high hopes for her as a trump card alongside Suzanne.

And since, of her, Patty, and Colette, she was the closest to LV50, I'd been rushing her leveling too.

"That's not… I'd be plenty satisfied just being able to be of use to you, Naoto-kun.

"… But, if I get a reward, I'd be happy. So if I'm allowed to ask for what I want…"

Luna, embarrassed but earnest, voiced what she wanted me to do.

"That thing you did the other day, where you rubbed your ochinchin against my omanko and shot dopyu-dopyu loads on it… That sumata sex.

"Sumata sex, please…"

Embarrassed though she was, she said it clearly.

And then, naked on the bed, Luna made use of her flexible body to lift her legs up and hold them.

Like this, it was certainly easy to rub my penis against her omanko.

… Of course, beyond that… it was easy to insert too.

Nuchu, kuchu…

The warm, hot heat rubbed against the underside of my penis. This felt good.

I leisurely moved my hips back and forth, savoring Luna's feel.

"Ahh… your ochinchin's rubbing against my omanko, Naoto-kun… it feels good…!"

Luna was moaning like it felt very good too.

Incidentally, when the system was rejecting it, you couldn't even touch the genitals with a finger to begin with.

Much less with a sex organ; out of the question.

In other words, the fact that I could rub against her like this and have sex via sumata meant…

That if I got the urge, I could have real sex with her at any time.

… Of course, I wanted to so badly I couldn't stand it. If sumata felt this good, just how good would it feel if I really put it in?

But up until now everyone had properly kept the rule of waiting until LV50 to share bodies, so…

With Luna too, I'd properly keep that rule.

How much meaning was there in holding back like that?

But by waiting like this, biding my time, and properly making love at the perfect moment, an even greater joy awaited.

Luna seemed to feel the same way.

Such a cute, charming, wonderful person; the virginity of Luna, the idol I'd once admired… taking it without any patience would be far too much of a waste. The time before having sex with Luna was only now, after all.

"A, aaah… Luna…!"

Pyu, doku, doku!

Thinking ahead to the goodness of Luna's vagina I'd taste before long, I ejaculated.

The semen I let out hit Luna's white, beautiful naked body in spurts, painting a white map on her.

"Aaah… Naoto-kun…

"I… is it really okay for me to be this happy…? That's how happy I feel right now, this much…!"

Luna murmured, enraptured.

Luna, who as an idol bathed in the spotlight had been filled with every kind of glory.

That she said being splashed with my semen was happier than every glory she'd earned as an idol, every glory she'd have earned from now on…

"Even if I could go back to the original world… if it meant being apart from you, Naoto-kun, absolutely not. That would be hell.

"I'm already Luna, your Garumon, Naoto-kun. I don't want to be anyone else."

Luna smiled glamorously.

The Skill she learned before reaching LV50 was one.

The strongest of the Holy-line spells. Suzanne had already learned the Divine Art Testament, which greatly surpassed it, so within our group it didn't feel that intense, which was a shame, but in normal terms, learning this made it the strongest Holy-line technique, a powerful skill.

It came with guaranteed-hit, and was so strong even among the strongest element-line spells that the Garumon who could use it were limited… or so I'd read in the explanation, and Luna had become one of those Garumon.

I removed Divine Ray.

I'd agonized over Cross Blade too, but figured a physical 2-hit might come in handy at times.

Well, I was kind of feeling she could go full God-element and be fine. God-element was just that overwhelmingly strong.

The only things God-element struggled against were Metal, Dragon, and Spirit, so basically she was at an advantage against most Garumon.

Part of why she'd been able to pull her weight even at low levels was the strength of her element.

She was at last LV49, and LV50 was close. Whether Luna could become a Seraph, the same as Suzanne…

Even if she could, the seat probably wasn't open… If so, she might have to wait for a Seraph seat to open.

Such concerns existed, but…

All I could do was believe in Luna's growth, and her strength.