Roommate to Nazotoki wo

A young student at an all-boys boarding school, Togawa Hinata, shares a dormitory with only five others in the older building, Asunaro Hall. When a new student, Takamiya Echika, transfers in and becomes his roommate, their initial interactions are tense. Togawa looks forward to the change, but Takamiya is direct and uncooperative. Despite their differences, Togawa notices that Takamiya displays sharp analytical skills reminiscent of a detective. The two gradually work together to solve a murder mystery that emerges in their school.