Hisano is an ordinary high school girl who dreams of a sparkling life. One day when things were going well, her classmate Karasu also started to notice, but suddenly her parents' house burned down! She will be living in a shared house for a year until a new house is built, but she also has a reliable roommate and even Karasu living there! Hihayano is excited about suddenly living together, but what is the secret that the residents of Ayashi-so have in common...?