Leo is a host at a nightclub who always believed he had no interest in men, until he sleeps with Takahiro, a sex worker who introduces him to pleasures he had never felt before. After this experience, Leo finds that sex with women no longer satisfies him. He begs Takahiro to sleep with him again, and they agree to a friends with benefits arrangement.

The protagonists are Leo, whose real name is Mareo, a straight host at the nightclub Diablo, and Takahiro, a male sex worker. The story is set within the nightlife and adult entertainment industry. The relationship begins as a purely physical contract but becomes complicated as Leo realizes he may be falling in love with Takahiro.

A major turning point occurs when one of Leo’s best customers asks him to sleep with her. Takahiro catches them in the act, causing the situation to take a dark turn.

In a subsequent narrative arc, Leo is fired from the host club Diablo, forcing him to leave his life as a straight host behind. He lands a new job at an adult goods manufacturing company. This shift in employment creates a new conflict, as Leo now works days while Takahiro still works nights. Their schedules rarely align, making it difficult for them to talk or be intimate. Although neither admits it openly, both feel lonely as a result of their new circumstances.