Asuna, who loves drinking, was having fun while mingling with her juniors at a drinking party in her university club. Takeshi, who was made to play with Asuna, gets drunk and the next thing he knows, the two of them are alone. When Takeshi misses the last train and can't go home, Asuna decides to stay at her house and have another drink, but when she listens to Takeshi's behavior being suspicious, she discovers that he is a virgin! She was amused and enjoyed the naive reaction.