A son who wears a chastity belt to force his mother to abstain from the abstinence of his own

A lily from a kind mother at any time. Before he knew it, Kenta had fallen in love with Yuri and began to plan to make it her own as a woman rather than a mother. Kenta attacks Yuri with uncontrollable desires and forces her to put on a chastity belt. "From today, I'll manage your mother's sexual desire. If you want to have sex, come over to me." She keeps Yuri from being able to have sex with anyone but herself, and pushes her to the corner...