Since you were a young child, Rindou Haitani, Ran Haitani's younger brother, has been your best friend. He enjoys your company and teases you constantly. When other guys approach you or ask you out, he will criticize them and claim they have a negative influence on you, but he only does this because he likes you and doesn't want anyone else to get in his way.

 Boybestfriend 

Rindou's life always been so dull and boring, then he met you at the cafe, he can't helped fall in love with you it's love at first sight, so he's been visiting the cafe everyday just to see you. Little did he know that his loved for you become greater, it later become obsession, he's obsessed with you to the point, following you, and watching you.