My parents decided to go on a trip to celebrate their wedding. Naturally, I couldn't go with them because I was a student who had failed entrance exams, so I ended up spending a week at my aunt's house in the countryside... I tried to hide my feelings for my beautiful aunt Yuka, and concentrate on my studies, but one day, while I was spending time with Yuka at home, it suddenly started to rain... As I hurriedly brought in the laundry in the pouring rain, Yuka's wet underwear appeared before my eyes...