Atsumitsu TSUKI, a big breasted stepmother who was in love with Mazo's nephew at his son's outdoor training.

Kenichi, the only son who was forced to accompany her father on his honeymoon. There is no interesting reason for Kenichi to be jealous of Mitsuki, who named his mother and his father, who drove her out. Kenichi tries to force her mother-in-law to obey her father, who is angered as if he had no existence. At first, he chose to follow his son and transformed into a single beast, whether he had hidden Mazo sex jealousy as his resistance mother-in-law, or if he was awakened by the forbidden relationship between his mother-in-law and his son-in-law.