At the age of 16, she gave birth to her son. Supporting the family budget while working at night, his son grew up to attend a part-time school. However, "Ran" had no way of knowing that his son was beginning to recognize himself as the opposite sex. A son who is lustful for "Ran" who is a mother and a young and beautiful woman. "I want to monopolize my mother" That desire becomes an obscene desire and attacks "Ran". "Ran" resists his son's actions, but when his frustrated body is tampered with by his son who has grown up as a man, he gets his crotch wet.