Hajime Tanaka visits the house of Yui Obata, only to be informed by her mother, Natsumi Obata, that she is out for the day. Good thing Tanaka's real purpose for visiting was to supplement his Sexual Counseling services for Yui by "examining" her own mother. It's all-in-a-day's work for our resident hypnotic sexual counseling expert as he adds yet another mother to his growing collection of women.