Chisato, who works at a securities company, has achieved results through stock trading and has been promoted to the head office. Chisato's good luck charm is a countdown. His wife Himari counts '10, 9, 8...' as Chisato completes his trades, feeling proud of him. However, his senior colleague Yoshimura envies Chisato. While Chisato is counting down '3, 2, 1... Zero' at work, Yoshimura visits Chisato's home and rapes Himari. Counting down '5, 4, 3...' until he ejaculates inside her...
