Kenji, a college student, is a slender sister-in-law, Yuria, but she frequently visits her brother's house to peek at her erotic body with a clear cleavage and a big butt. Kenji, who wants to fuck Yuria, peeks at Yuria's bath and steals her underwear to relieve her distorted desires, but her desires escalate and finally she begins to voyeur Yuria.
