JUFE-210 Grandpa's secret sexual development that drives naive schoolgirls crazy - Memories of being trained covered in sweat that summer - Erina Oka

During summer vacation, female college student Erina went back to her parents' house. - Sweating from the intense heat, Erina learns that the bathtub in her house is broken, so at her mother's suggestion she goes to her grandpa's house in the back to borrow a bath. - The old man is shaken by Erina's sensual growth after a long hiatus and is unable to suppress the strong desire that arises for the first time in several decades and attacks Erina with all his might. - He then takes advantage of Erina's weakness by saying, ``In a rural area like this, if a rumor spreads, even the mothers won't be able to go out...''.