江户时代末期（本作的20年前），被称为天人（あまんと）的谜之异星人来袭。于是地球人与天人之间的战争瞬即爆发，为数众多的武士和攘夷派志士都参与与天人的战斗。幕府见识到天人强大的实力后，最终向天人低头，放弃武士不管，擅自与天人…

Appoy is a school kid with a creative mind who couldn't cope up with the formal system. All the while he got attention through his art. When he was forced to the edge of the system he begin to lose his identity. Late…