An immoral world where a man becomes sexually aroused by his wife's mother is now here! The husband was asked to repair the air conditioner at his wife's parents' house, but what did he see on the day? "The day I did it with my mother-in-law". The mother-in-law reaches out to the crotch of her sleeping daughter's husband...? "The mother-in-law takes her daughter's husband in her mouth!" The husband's thing that doesn't get excited. Is there a secret he's hiding behind that...? "My thing only reacts to my mother-in-law." A new work with 3 episodes in total!