A single son of a single-parent family is always bullied by his friends, a weak-willed child. Worried about such a son, his mother, Naho, tried to warn his friends and eliminate bullying, but... she fell into a trap and, thinking they were just kids, underestimated them. When she realized, she was dealing with the children's sexual issues every day. And then, she was forced to have unprotected sex with her son in a violent manner.
