Ishida stays over at Fujitani's house and accidentally witnesses Fujitani's mother, Tomoriko, masturbating. He successfully records the act with a hidden camera and agonizes over what to do with the footage. Burdened by his insecurity over still being a virgin, he can't suppress his dark desires and comes up with the idea to blackmail Tomoriko into becoming his first sexual experience. Yet, he remains deeply conflicted, torn by guilt and inner turmoil over whether he should really go through with it.