OVA Kakurenbo / Hide and Seek

Kakurenbo is an anime adaptation of the manga of the same name by mangaka Kyockcho, which was published in the June 2018 issue of Comic Bavel magazine. The hentai plot revolves around Ryo and Hina, a couple of students who have been dating for six months but haven't had sex yet. During an excursion, Ryo, unable to hold back any longer, sneaks into the girls' room to kiss Hina. Just as he succeeds, their classmates unexpectedly return. Ryo and Hina hide in a closet. Despite the close call, the tension of the moment overcomes them, and they end up having sex in that cramped space.