Shizuo Heiwajima, also known as “the strongest man in Ikebukuro”, is a man who definitely relishes that title. Though he carries with him a high esteem, something is amiss. Lately he has been extremely short-tempered and does not know why. His senior partner, Tom Tanaka, will occasionally try to calm him down, and Celty is quite often found worrying over him. His short-temperedness also has everyone wondering: what exactly is bugging him? He wanders throughout the city reflecting upon his past.