Mother and child bathing incest

Her son Hiroshi returns to his parents' house where Minako lives after being deported. Minako, unable to see Hiroshi's lack of energy after a long reunion, invites him to take a bath with her. In the steamy bathroom, Hiroshi can't help but bury his face in his mother's big breasts... That evening, as Hiroshi relaxes, he receives a call from his senior, Isamu, on his cell phone. Minako decides to let Isami live in her house for a while when Isamu says he has no place to live after being laid off. However, that decision creates a rift between her and Hiroshi...