My stepfather's wife is teasing me about my stepfather. Please forgive me now...

Sakiru is a wife who lives a happy life with her husband Keisuke. Kazuo, the stepfather who had come to the Usui family frequently to ask for money while Keisuke was not at work, witnessed an incredible sight one day. Sakiru was attacked by a man who was a door-to-door salesman. Kazuo manages to drive away the man and saves Sakiru from the crisis. "Daddy-in-law, you saved me"... Kazuo said something unexpected to Sakiru, who was full of gratitude...