Hebikuidori

A student named Nijo witnesses two men having sex and later recognizes one of them, Chidori, as a university staff member. Nijo becomes fascinated by Chidori's contrasting daytime and nighttime appearances and begins interacting with him at a part-time job, drawn to his appealing demeanor and captivating smile. Meanwhile, two friends, Mouri and Yura, face persistent rumors about their relationship, including the claim that they are a couple. When Mouri is asked out by a girl, a rumor arises that they had a one-night stand, prompting Yura to kiss Mouri in an attempt to make one of the rumors true. The story explores whether Mouri will understand Yura's feelings and if their friendship can recover or be lost.