Ryota is staying at his aunt's house while attending a university in Tokyo. Although he is grateful for the opportunity to stay at his aunt's house, he is troubled by the fact that he is too close to his aunt Ayumi, whom he has always admired. He is not a good enough person to remain calm with the woman he loves right in front of him. Finally, Ryota's patience is at its limit, and he becomes aroused by the panties she has just taken off, so he secretly wraps them around himself and starts playing with himself. However, unfortunately, Ayumi shows up at that moment...