Fujishima, a detective, is deeply dedicated to his job. Upon the arrival of his new neighbor, Gojyo Mitsuru, Fujishima quickly befriends him despite Gojyo's lack of household skills - even struggles with throwing away garbage correctly. Fujishima finds Gojyo's dependence on him endearing, however, a sudden appearance from one of Gojyo's acquaintances brings an unexpected turn to their blossoming friendship.