Change Sanjou!

A high school student named Sota has a rare condition that allows his body to be taken over by others. At the suggestion of a friend, he begins a part-time job at a detective agency run by three brothers who were once famous detectives. Each brother takes control of Sota in turn—using logic, disguises, and physical strength respectively. Through this ability, Sota becomes a powerful detective. The story explores the cases they tackle next.