"So… how long do you plan on staying on my back?"
Flattened against the floor like a frog, Hachiman Hikigaya turned his head to glance at his adorable younger sister perched on his back.
Hmm.
She's light. Much lighter than Yukinoshita.
Of course, weight wasn't the main point here.
The real issue was…
Hachiman's gaze unconsciously drifted toward Komachi's figure. For her age, she was… coming along nicely.
Hmm, drinking milk every day seems to have paid off.
Cough, cough!
Calm down, Hachiman!
That's your little sister!
"C'mon, big brother, keep doing push-ups. Komachi's cheering you on from behind!"
Komachi giggled playfully, showing no intention of getting off her brother's back.
"I can't… I'm at my limit."
Hey, hey! Sit still, will you? Stop squirming around like that!
"Seriously, isn't this the point where you're supposed to unleash your sister power and burst into your own personal cosmos?"
"Maybe next time. Right now, I'm done."
Ugh, my body really feels drained.
"Wow, you're so weak, big brother."
Seeing Hachiman's pained expression, Komachi finally slid off his back with a sigh of resignation.
Hachiman felt instant relief. As he sat up, he found himself unconsciously touching the spot where Komachi had been sitting.
…Huh?
Why does this feel… wrong?
More than that, when she got off, there was this strange pang of loss.
Wait. Am I awakening some sort of forbidden preference here?
Did I actually want my cute little sister to stay on my back?
"Wow, big brother, you—"
Komachi's startled voice interrupted Hachiman's spiraling thoughts.
"What? Why are you looking at me like I just grew a second head?"
"Hmm… Is Komachi imagining things?"
Komachi leaned in close, her round eyes studying Hachiman's face intently. She reached out to brush his sweat-soaked bangs upward, making him flinch.
"Hey! Don't touch me when I'm all sweaty!"
"Ah!" Komachi suddenly exclaimed, her expression full of surprise. "Why do you look… handsome all of a sudden?"
"Hmph! I've always been a handsome guy, okay?"
"No way. The old you, with those dead fish eyes, could scare away a whole playground of kids. Komachi was probably the only girl willing to get near you. Every other woman fled like you were cursed!"
Ah, thanks for the loving support, my dear sister.
"But today, even Komachi feels like you've become kind of a little heartthrob! Honestly, I think you might even…"
Komachi trailed off, her expression shifting. She suddenly stood up and took a few cautious steps back, putting some distance between them.
"???"
Hachiman blinked in confusion. This was the first time Komachi had ever reacted like this.
Could it be…?
Have I actually gotten more attractive?
Can working out really make someone look better?
Meanwhile, Komachi continued to study him carefully. After a few moments, she nodded decisively.
"This is great! I used to worry about you so much, big brother. But now that you're getting more handsome, I'm sure you'll have no trouble attracting girls in the future!"
Hachiman sighed. "Komachi, I've told you a million times—I already have a girlfriend. There's no way I'd ever betray Yukinoshita."
How many times do I have to say it?
Loyalty-bound Hachiman will never betray Yukinoshita!
"Yeah, yeah, I get it. That's just how you are, big brother. You don't have to worry, but Komachi has to think ahead about a lot of things, you know?"
"..."
---
Meanwhile, in the bathroom…
Yukino Yukinoshita frowned as she questioned her system. "So, Komachi can be a potential target too?"
[Of course. As Hachiman Hikigaya's younger sister, Komachi Hikigaya qualifies as a potential conquest. Any interaction with her also generates system points.]
What kind of degenerate system is this?!
Even in Japan, relationships between siblings are absolutely forbidden!
Does this mean my Hachiman is just going to stick to any girl who comes his way?
How tragic!
Yukino sighed. "But why were the points so high? A full 50 points… What on earth did those two do?"
After all, the level of intimacy determines the number of points.
Simple acts like holding hands or hugging generate low points.
More intimate acts—like kissing or… making children—yield much higher rewards.
Don't tell me…
Were those two kissing?!
No, no, no!
That's impossible!
Yukino, who deeply trusted Hachiman, tried her best to dismiss the thought. She just couldn't imagine him engaging in something so outrageous with Komachi.
"System, what exactly happened between them?"
[Komachi Hikigaya, as a high-quality heroine and Hachiman's biological sister, comes with a point multiplier for interactions.]
"Huh? So being his biological sister gives her a bonus?"
Yukino furrowed her brows.
This system is seriously twisted!
Is it actively encouraging forbidden relationships?!
[Not just Komachi. Any girl with a blood relation or familial connection to either Hachiman or you also receives this multiplier. For example, your elder sister, Haruno Yukinoshita, would generate significantly more points compared to a girl like Megumi Kato.]
"…?!"
Even someone related to me counts?
No, no, no!
There's no way Haruno can be involved!
Yukino's breathing grew rapid. She knew all too well how overwhelming her older sister could be. If she even allowed Hachiman near Haruno, the consequences would be unimaginable.
The memory of Haruno casually remarking, "I need a boyfriend—Hachiman would do nicely," made Yukino shudder. No, no, no! She absolutely couldn't let those two have any inappropriate interactions!
[As a reminder, Haruno Yukinoshita earns significant points even from something as simple as hugging Hachiman.]
"H-Hugging?!"
Well… hugging wasn't that bad. Haruno liked hugging people, anyway…
…Wait!
What am I even thinking?!
I can't let this wicked system tempt me!
I already decided to minimize Haruno's contact with Hachiman!
She's… far too dangerous right now!
But… if she finds a boyfriend of her own… maybe it'd be okay to let her interact with him a little?
Yukino began to ponder.
Then, as if on cue, a completely absurd thought entered her mind.
"System, what about… my mother?"
[As a highly desirable woman, your mother would generate extraordinary points. Even a simple touch would result in an impressive reward.]
"Excellent!" Yukino's eyes lit up.
Truthfully, her mother adored Hachiman. If an opportunity arose, it wouldn't be difficult to get them to share a small, harmless interaction…
[As expected of my host, considering introducing her boyfriend to her mother as a potential conquest!]
[However, I must caution you. While mere touches or kisses would yield enormous points, further interactions would produce astronomical rewards. That said, your mother's conquest difficulty is rated as hell-level—higher even than your sister's.]
[Furthermore, your mother has a possessive nature. Should she truly take an interest in Hachiman, you may very well lose him forever. Proceed with caution.]
"…?!" Yukino's initial excitement vanished, her lips twitching uncontrollably. "Are you insane? I only wanted her to hug him or something! Kisses or conquests… that's my mother!"
Absolutely not! My mother is off-limits!
**************************
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