Takao, a young man who lost his job and was kicked out of his home, is staying with his older brother and sister-in-law until he finds a new job. However, he has no place in their home either, and his brother berates him every day, saying, "You're a pathetic man, still a virgin at 30." Wanting to gain confidence, Takao makes a lifelong wish: to have his virginity taken by his sister-in-law, Sora. Sympathizing with Takao, Sora agrees, just a little...