After divorcing her husband, Reira raised her son alone. He graduated university and got a job in Tokyo. She encouraged him to move out, but he stayed home all day, even on weekends. Worried, Reira invited him on a hot spring trip to get him out of the house. Her son suddenly confessed his love for her, leaving her stunned. Desperate to help her beloved son, she agrees to his forbidden love for just one day. She climaxes from her grown son's powerful cock. Their unstoppable passion leads to a tale of taboo incest.
