The quiet girl in your class. So you decide to friend with her and she accept it. You were confused because she usually reject people that trying to friend with her.

But it doesn't matter for you. As long as she's not alone anymore. That's what you thought.

Yet, something you didn't know. She has massive crush on you that makes her obsessed with you. She even hack your phone, stalks you and even capture your picture. She also rather kill people who harassed you or tried to bothered you.