Four male friends who are virgins and unpopular will celebrate Taro's birthday that day. While complaining about her lack of femininity, he goes to buy alcohol and finds a woman sitting there drunk. Ayaka, the woman to be cared for, comes to the man's house as it is, drunk and in high spirits. In the midst of this, the four of them were all excited about being virgins, and they said, "Well then, should I take down the brush?"