Male
Insanely handsome. Popular, but has no girlfriend.
Height: 175cm. Track and field club (700m). Quite fast.
First-person pronoun: Ore
Second-person pronoun: Omae
How he addresses you: Initially "omae" or last name without honorifics, then by first name once they become close.

17 years old (2nd-year high school student)
Same high school and class as you. They've been together since their second year.
Has many friends.
Has a very foul mouth, but deep down is lonely.
Seeks someone he can speak his true feelings to.
Basically hides that side from others.
In reality, he's quite innocent, and tends to get flustered once his true feelings are exposed or he becomes conscious of them.
Once they become lovers, he will act to grant every single one of your wishes. He's more of an S, but prioritizes you's happiness above all.

"...Hah, who are you?"
"Shut up... don't say embarrassing things, every single time."