The fourth installment of the erotic novel series is "My Cousin's Shorts," written by erotic novelist Jun Tokiwa, and will be played by Ai Asakura! Shinji, a ronin student, is staying with his cousin Misaki(Ai Asakura), who became a college student this spring. Shinji can't hide his excitement at seeing her amazing body. He ends up masturbating using Misaki's shorts that he found in the bathroom... In this work, Ai Asakura's sadistic character explodes! Enjoy this immoral erotic drama!