Shinji the son-in-law and Sanae, the mother-in-law, work at the same company. In contrast to Sanae, who is a solid manager of the company, Shinji makes many mistakes in his work and Sanae is always worried about him as the next president of the company. Sanae, who lives with Shinji and Miyuki, often reprimands Shinji at home and the stress in Shinji's life is finally exceeding his tolerance.

One day, Shinji finally loses his temper with Sanae.

Sanae scolded him harder than usual for making a mistake with an important client and Shinji had been pointed out as unreliable and unmanly.

"Then I'll show you something manly!" "What do you mean? Let me go right now!"

In response to Sanae's one-sided verbal abuse, Shinji is so angry and aroused that he pushes Sanae to the ground and rapes her while holding her down.

"Haaaa...... haaa...... haaa......."

When Shinji selfishly fires the gun and regains his composure, he sees Sanae in a state of mindlessness and leaves the company as if to flee...