Maruyama, who runs a manufacturing business, takes a liking to Ren, the daughter of a subcontractor factory, and plans to somehow make her his own. He welcomed Ren into her home as his own son's tutor, threatening to limit her orders. Maruyama who rapes Ren aiming for a chance that her son is not there. Maruyama's fierce anal rape, who loves assholes. The son who peeked at such two people's indecent appearance ....