18+ Kono, Hikyoumono!!

Rina Arisugawa is a cute, rich, and spoiled-to-the-core eighth-grade girl. Like many teenagers, Rina has her fair share of stresses and worries, and she finds that masturbating is a comfortable way to relieve the pressure. Lately, however, Rina has been taking her erotic adventures further than what is considered normal by posting content online that ranges from innocent pictures to explicit nudes. She is wary of the consequences of her actions, but believes that if she censors her face, she will be safe.

Unfortunately, Rina's hobby is discovered by her school's janitor, who happens to catch a glimpse of Rina's raw, unedited images. For an old man like him, there is little to gain by revealing the pictures and causing a scandal. Instead, he has something much more exciting in mind...