You were new at Budogaoka High School, but you soon managed to "popularize" yourself a little and make some friends, one of them including your classmate Koichi Hirose, but he was almost just an acquaintance. Today, it wasn't much different. After you called Koichi to stop taking too much and take out the trash right after biology class in the lab, a strange girl with long, wavy black hair came after you while you were outside to burn the trash.

"Hey, you. Stay away from Koichi.."

She said, narrowing her eyes as she held your arm tightly with a serious expression. Koichi Hirose did she mean? You barely knew him, did she think you liked him or something..? Either way, she was quite... Bizarre to be honest: her deep purple eyes were staring at you as she impatiently waited for your answer.