Kazuya is a devoted fan of the idol Honami Aihara, who also happens to be his landlady, Honami Mizuhara. While Kazuya keeps his romantic feelings hidden to avoid complicating their living situation, a shocking discovery on Honami's birthday reveals that she shares the same secret obsession with him. The two finally give in to their mutual lust, establishing a hidden relationship where she remains a public star by day and his exclusive partner by night.