The main character is the grim reaper from another world called Fifth. He is in this world to get back a scythe. One day, he finds out that a man called Kuroda carries it. He tries to get it back by force, but he fails…. Also, he accidentally kills Mitsuru during the battle. He gets his body to conceal his death, and starts living as Mitsuru. He enjoys his life as a human being with his sister and childhood friends. One day, a new girl student comes to his school, and he gradually falls in love with her…