Takuya, the son, peeps at his mother Yumi's voluptuous body from behind the bushes. His feelings of respect for his mother gradually扭曲, and he can no longer suppress the desire to make her his own as a woman. 'It's a present for mom,' one day, Takuya attacks Yumi and fits a chastity belt around her crotch. 'From now on, I'll manage mom's sexual desires,' Yumi, unable to consult her loving husband, faces the approaching limit of her growing desires...
