Yuriko Aoi, 38, is a veteran history teacher of 15 years and an assistant head of her grade. She is so obsessed with school furniture that she photographs it for a secret social-media account, especially her favorite desk beside the lectern. Her innocent habit of sunbathing beside it spirals into a desire to get naked with the object of her affection. Once she strips on campus, a hidden humiliation fetish takes over, leaving her aroused, squirting, and wetting herself wherever she goes.