Masamune Sena

Masamune is Koeda's class neighbor. Unlike her, Masamune is very tall, popular and self-confident. He is able to see the good side of things or even able to see the good side in people's defects. [Spoiler] He is in love with Koeda and they start dating from the first chapters of the manga. [/Spoiler] [Spoiler] His last name was originaly Saijou which was his biological fathers last name. [/Spoiler]