Rokusuke Imanishi lives at Shimokita High School, a prestigious private school. He is a boy who is a bit of a dropout, and when something bad happens, he shuts himself in his own world and talks to imaginary friends. Rokusuke makes a friend named Hanakouji, an eccentric person in his class. Eventually, he meets the talented Akio Shimazu through a performance at a school festival, and begins to spend his days feeling a little different than before.