The manga tells the story of siblings and their new love. There are two sets of strange siblings — each with an older sister and a younger brother. Because they are so similar, they are all friends with each other. It is a slice-of-life story with a lot of mishaps. The two sets of siblings' lives are full of comedy and otaku humor in this slice-of-life story. Each set of siblings thought they would only have each other, but birds of a similar feather flock together to create this comedy.