“Aoharu-sou” is a boarding house where high school students with a variety of personalities gather. There is Hinata, who is like a little brother to everyone, Hamayu, who is good-natured and a leader, Tachibana, who is good at playing the guitar, and Sena, who has his own pace. Then Kiritani, who is the same age as Hinata, moves in and …?