Sayonara Dattara Yokatta

Keigo, a former novelist, has long harbored feelings for his childhood friend Ryuji. His affection has led to an obsession with black tights and certain sexual behaviors, inspired by a joke Ryuji once made. Ryuji's younger brother, Saku, an art student aspiring to be a photographer, is the only person who knows about these two sides of Keigo. Saku convinces Keigo to call him "Ryuji" and engage in sexual activity as a way for Keigo to channel his unresolved emotions. Keigo is unaware of why he is with Saku and does not understand the significance behind Saku's desire for him to return to writing novels.