The class Halloween party is coming up. Since no one else wants to do it, everyone pushes Keima to invite the sullen class loner, Kii, to the event. What they don’t know is that Kema and Kii have been close friends since childhood. But, Kii insists that Kema keep his distance at school so that Kii doesn’t ruin Kema’s popular image. No matter what Kii says, Keima believes Kii is amazing and wants to prove it him and everyone else, too.