Kazuya Kinoshita, a 20-year-old college student, finds himself devastated when his cheerful girlfriend, Mami Nanami, unexpectedly breaks up with him. In an attempt to heal his aching heart, Kazuya uses an online service to hire a rental girlfriend, Chizuru Mizuhara. Chizuru, with her striking looks and charming behavior, quickly wins over Kazuya. However, after discovering that other customers had similar experiences with Chizuru, Kazuya concludes that her affectionate actions were merely a facade, aimed at manipulating his feelings, leading him to leave her a bad review.
Angered by his accusation, Chizuru confronts Kazuya, showing her true fiery personality as she criticizes his insincerity. Their heated argument is abruptly halted when Kazuya learns his grandmother has been hospitalized. Rushing to the hospital, they find his grandmother in stable condition but curious about Chizuru’s identity. Caught off guard, Kazuya impulsively introduces Chizuru as his girlfriend, trapping them both in a deceptive relationship.
As Kazuya still deals with his feelings for Mami, the question remains: how long can he and Chizuru maintain their pretend romance under these complex circumstances? [Adapted from MAL]