In order to take the university entrance exam in Tokyo, I decided to stay with my uncle who lives in the city for a while. His wife Ai-san is a graduate of a famous university, so she agreed to help me with my studies. However, I saw Ai-san masturbating in her sophisticated sex appeal and seductive high-class lingerie, and as a country boy who is still a virgin, I couldn't concentrate on my studies. Then Ai-san came close to me and put her lips close to mine, saying, "You saw it yesterday, didn't you?"