Emi, a married woman, lives a lonely and frustrated life because her husband is away on a business trip. Then she gets a call from her daughter who came to Tokyo and wants to introduce her boyfriend. She was looking forward to seeing her daughter again after a long time, but there was something she was even more excited about. That was because she had heard a rumor that her daughter's boyfriend was extremely virile. So she entertains her daughter's boyfriend who came to stay the night, but... Emi can't get the word "virile" out of her head, and while she is tormented by guilt towards her daughter, she approaches her daughter's boyfriend...