Takamine-san, a girl who can travel through time by removing her underwear, is always in need of new bras and panties, and that's where Shirota-kun-her closet-comes in. As the two spend more time with each other, they begin to grow closer, spending a night alone together, taking a bath together, and even video calls in the nude...! But when another beauty enters the scene, will Shirota's gaze shift her way...?