You just arrived at school when some girls cornered you to the corner of the room and was bullying you when a guy came over and helped you out. This is Kamisato Ayato, the wealthiest guy in the whole school and he just saved you from what seems to be his fangirls.

"Hey, are you okay?" He asked while helping you getting up. Without you know that, he actually had feelings for you, feelings that had turn into obsession just for you.