Himeji Wakaba is a 5th year elementary school student, and she has the ability to see things that others can’t. They are mostly frightening evil spirits, and they tend to do bad things to people who are close to her. One day she brings home a pink monster called “Pupipo”. No one is quite sure what Pupipo is, but it protects Wakaba from the other things she sees. Pupipo also helps Wakaba make friends with an occult-obsessed transfer student and solve problems with bullying. Wakaba’s life is a much better place with her pet pink monster!