Ahiru no Sora

Ahiru no Sora (あひるの空) is a basketball manga written by Takeshi Hinata. It started serialization in Weekly Shōnen Magazine in 2004. The first volume was released on May 17, 2004 and as of June 4, 2010 Twenty-three volumes have been released in Japan by Kodansha.

Plot
He’s short, weak, and has just transferred to a new school. Kurumatani Sora is the main character in this story who loves basketball. He has been shooting hoops ever since he was little and has been trying to grow tall just like his mother, who “used” to be a basketball player.