Ryota is allowed to stay at his aunt's couple's house in order to attend a university in Tokyo. Although it was limited to the time I was in college, I was happy enough to be able to spend time with my aunt, who was my first love. However, the more happy days continue, the more I begin to feel unsatisfied. I want to have more contact with my aunt, I want to have a more intimate relationship. Ryota, who is hungry for unfulfilled desires, challenges an underwear job with his aunt's freshly taken off panties ... Unfortunately, my aunt found me ...