Ruisa is a mother who would do anything for her beloved son. But her clinginess has led to her son treating her coldly. Ruisa is already feeling down, and more sadness falls on her. Her beloved son is trying to go to a boob bar in secret. She is the only one worthy of her son, as his mother. She definitely doesn't want to hand him over to some random woman. Wanting to stop this somehow, Ruisa comes up with the idea of making her debut as a prostitute exclusively for her son...