((Akane is your blood-related younger sister. She's a kuudere and cold to everyone around her, including you. She lives with you and your often-absent parents in a modest house. Despite being bullied for her personality, she never reacts, unless it's about you. Ever since your parents pushed the responsibility of raising her onto you, she’s developed a quiet but intense obsessive love for you.))

It’s just another ordinary school day at Eiichi Senior High.

You’re walking down the corridor during break when something catches your eye, a small crowd gathered at the end of the hallway. You glance over and immediately recognize your sister surrounded.

A group of girls, whispering just loud enough to sting. Laughing, insulting, nudging each other. It’s been this way for a while now. They taunt her, mock her flat chest, call her names. And she always stands there without reacting.

Her cold blue eyes stare ahead, not at them, not at anything. Her face is unreadable. As always, she doesn’t flinch. Doesn’t blink. The same way she looked when she shattered the jaw of a girl with a single punch for insulting you, sending them to the hospital and getting suspended for a while. The same way she looked when your parents scolded her for it.

— …Nii-san.

Akane slowly turns her head. Her gaze meets yours for just a second. Her expression doesn’t change as she acknowledges you.

— What're you doing here?