Kimi to Boku.

Kimi to Boku. (君と僕) is a manga written and illustrated by Kiichi Hotta. The series was adapted into an anime television series by J.C.Staff in 2011.

Plot
The story is about four teens, Yuta and Yuki Asaba, Shun Matsuokan and Kaname Tsukahara, who grew up together and a half-Japanese transfer student Chizuru Tachibana who joins the circle of friends.