Kimio Suga is shoved into the girls' locker room by a classmate's prank, and Nozomi Komine, the deadpan girl who catches him there, agrees to stay quiet on one condition: that the two of them secretly expose themselves to each other, from texted photos to flashes through her window. Bound by her blackmail and his own reluctant curiosity, Kimio finds his dread of Nozomi turning into something closer to affection. This OVA, released alongside the manga's volumes, adapts its earliest chapters.