Rika Fujishita - Locked in a room with my stepmother in heat

Rika is age of 40 and single stepmother, decided to work as a temporary worker for her stepson who was going to study abroad. One day, while working overtime, the CEO of the company asks her, "I'll make you a permanent employee. She said yes. When her stepson happened to pick her up, he was about to open the office door when he heard his stepmother's voice.