Monami, a mother who dotes on her only son, Kenichi. Her classmate's bad boys tease and bully Kenichi, but when they see Monami's big breasts, her crotch throbs. The cunning Ryuji forced Kenichi to read the erotic book, and claimed to have cheated on her mother, saying, "Kenichi will show you the answer sheet, so give me the erotic book." Monami, who was shocked by her, had no choice but to listen to Ryuji in order to protect her Kenichi. Erogaki's torture escalates, and busty moms are like toys, and they're obeying their cocks.
