Manabu Kannou

Manabu Kannou goes by "Gakkun" and has been friends with Kenta since nursery school. Gakkun has a difficult childhood. His father left his house after discovering that Gakkun was not his son. Gakkun's mother had cheated on his father while they were married. [Spoiler] Gakkun falls in love with Kenta. [/Spoiler]