Kyoshi Ninmura ran a hot spring inn in a summer resort, living a quiet life away from the city. This time, the inn's guests were the Hidaka family, who ran a company in Tokyo.

"No, no, stop it!" Alisa's scream echoed through the room. She was pushed onto the sofa, her blouse was pulled up, her bra was unfastened, and her ample breasts were exposed. Although she fiercely resisted, as her breasts were fondled, she gradually began to secrete fluids and ultimately accepted everything. Little did she know that the entire act was being recorded…

A plan to corrupt the Hidaka mother and daughter had begun.