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Yu and Ryo have been best friends since they were kids. Yu is not the most approachable guy, unlike Ryo, who is very popular. It doesn't really bother Yu that he's the outcast of the class, and he even admits that Ryo is the only person he feels comfortable talking to. But then, Ryo is asked to substitute for a player on the basketball team, meaning that he is not able to spend as much time with Yu... Yu is unhappy about this, and he cannot help but lash out at Ryo. Could Yu's extremely possessive feelings be something more? Is their relationship really just about friendship?