Chapter 4 – Residual Summer Heat Doesn’t Matter to Yanderes

On the school route, those silver flowers are blooming in scattered patches. Silver blossoms popping up along the roadside and literally everywhere is quite the sight, but we walk on without giving a damn.

It’s autumn. Well, mid-September with the summer heat still refusing to fuck off. Honestly it’s still pretty hot today. Goddamn global warming. If we don’t fix this soon the entire season of autumn might just vanish.

“Ehehe~ White-chaaan~”

“Aku-nee, your tits are pressing against me. Also it’s hot as hell.”

Right beside me, despite the heat, Aku-nee is grinning like an idiot while clinging to my arm. Her well-shaped breasts feel nice squished against me, but it’s still embarrassing as fuck. There are other Hikigane High students walking around us.

At school I’m already known as the pretty rabbit (male) who’s dating his beautiful stepsister, so this isn’t new. Still, I really don’t want even more rumors and attention.

Besides, the fact that we’re officially treated as a couple is still kinda weird to me. It’s all because right after enrollment Aku-nee dropped a massive bomb during self-introductions: that we’re not blood-related and that we’re in love as man and woman. Yeah, definitely that.

“I’m pressing them on purpose~? You can grope them all you want you know~”

“You really push the aggressive seduction every single chance you get, huh Aku-nee.”

“C’mon White-chan, do you even know how popular you are here? You’re ranked 6th in the girls’ popularity poll! Sixth place! I gotta put my mark on you quick or someone’s gonna steal you!”

“First time I’m hearing that… Sixth, huh…”

I’m not saying I wanted first, but sixth feels painfully half-assed.

“So, serious talk. Will you go out with me?”

“Hmm… You’re beautiful Aku-nee, but honestly I’ve only ever seen you as family.”

I struggled to answer. I do like Aku-nee, but that’s pure familial love. Even if we’re not blood-related, suddenly becoming lovers just feels wrong.

“I’ll do anything White-chan wants, every single day~”

She unbuttoned the top button of her shirt and flashed her bra. …Black today, huh.

“Cut that out in the morning.”

“Meanie~”

I reached over and buttoned her shirt back up. What the hell are you doing on a public road? What if someone sees?

…Truth is, once I actually sleep with her I probably won’t be able to stop. Never underestimate a rabbit’s libido. Not to brag, but my sex drive is way stronger than my other desires. The second I cross that line with her it’s straight to nonstop fucking. She knows that too, which is why she keeps pushing so hard… Give me a break, this story is supposed to be all-ages.

“Answer is NO. We stay as we are!”

“Muuu… Maybe I should just attack you at night, strip you naked, fuck you senseless and make it collapse naturally…”

“Don’t say scary shit like that.”

“Besides, there’s that shark girl aiming for you too. Gotta keep her in check~”

Aku-nee glanced behind us.

Three steps back.

There stood a girl wrapped in a pitch-black negative aura.

Chapter 5 – Shark-Type Heroine

She had short golden-blonde hair, the polar opposite of Aku-nee, and was petite. Her purplish eyes were beautiful, but completely lifeless except for the burning flames of jealousy. She looked a little older than us and was wearing casual clothes instead of uniform.

Illustration (By Mitamin)

“…Sui-obasan. Your face is scary as hell.”

“Obasan…? Shouldn’t it be Onee-chan?”

“No, that’s not what I—”

“Sui-nee-chan. You used to call me that, didn’t you?”

“…Yes. Nee-chan.”

Faced with that terrifying Noh-mask glare, I instantly surrendered.

“Sui-obasama, you’re still going after White-chan?”

“Of course I am. A nephew who carries the face of my beloved sister? As a proud siscon, not laying hands on him is impossible.”

The one staring at me with dreamy, intoxicated eyes is Waniguchi Sui. My mother’s younger sister. Even though she’s my aunt, there’s a big age gap with Mom and since Mom had me young, there’s only five years between me and Sui. She’s a second-year university student living alone in an apartment nearby.

Her thick countryside accent and tiny build unintentionally make her a perfect noja loli.

Because we’re so close in age, she’s always felt more like a short older sister relative than an actual aunt.

However, just like she admits, she has a massive siscon obsession toward Mom. That twisted love naturally extends to me, Mom’s son who resembles her. If we weren’t family this would be straight report-to-authorities behavior.

Plus Mom spoils this much younger sister rotten, which only makes her worse.

If Aku is a wolf, then Sui is exactly as her name suggests—a shark-like woman.

What the hell. Why is my entire surroundings filled with nothing but predators trying to eat this rabbit? Is this the sorrow of being at the bottom of the food chain…?! Why do I have to feel like a tiny chihuahua every day…

“Aku-chan. You should give up on Byakuto and find a nice man. Even if you’re not blood-related, he’s still your little brother.”

While saying that, Sui wrapped herself around my free arm. Of course her soft breast pressed against me, making my heart skip.

I felt pathetic getting excited while being sandwiched by this terrifying noja-loli shark, when Aku-nee immediately fired back.

“Oba-sama, when it comes to blood relations, you’re in no position to lecture others. Actually, aren’t you at even more of a disadvantage~?”

“The parents of Emperor Jimmu—Ugayafukiaezu and Tamayorihime—were nephew and aunt. Nephew and aunt marriage is perfectly acceptable. It’s written in the Kojiki.”

Please stop casually dropping imperial mythology as dating arguments. That’s way too sacred. And is it even actually in the Kojiki…?

“Which means—”

“So which one are you marrying, Byakuto?”

“Completely skipping the dating phase and jumping straight to marriage, huh…”

I looked back and forth between the two beautiful girls staring at me.

Both of them are definitely beautiful. Even without family bias they’re cute as hell.

But one is my non-blood-related sister. The other is technically my aunt even if the age gap is small…

“……”

I could hear both of them swallow nervously. I slowly shook my head.

“I’m not dating either of you!”

“Wha—?!”

“Why not, Byakuto!”

“Why…? You already know why.”

Honestly, no matter who I choose it feels like it’ll end in disaster. The one left out will definitely hold a massive grudge forever… And I don’t have the balls or skill to handle both at once…

If they were strangers it’d be different. But we’re family. We’ll have to keep seeing each other for the rest of our lives. I want to avoid creating unnecessary landmines.

“Plus I’m personally not a fan of incest. I don’t want to end up like the Spanish Habsburgs.”

I pulled both arms free. Aku and Sui stared at me with pure resentment.

“I won’t give up! White-chan!”

“I’ll definitely recreate the Ugayafukiaezu and Tamayorihime legend with you!”

I lightly brushed off the two predator girls as we continued walking to school.