Koiji is living at his aunt Oda's house to attend a university in Tokyo. Every day, he is captivated by the beauty of his aunt, whom he hasn't seen in years, and it's driving him crazy. While living with his admired aunt is enjoyable, the stimulation is too intense. He must find a way to release his sexual desires before making a mistake. After much struggle, he comes up with the idea of using underwear as a tool for masturbation but gets caught by his aunt while rubbing against her soft panties…
