After retirement, these dejected men lead lonely lives, divorced, single, and separated from their families. Their only salvation is the beautiful cooking teacher Mirai. Mirai will do anything to encourage and heal the men, and she also begins to show her lewd nature and seduces the men. During the after-school lesson, she grates yamaimo until it's soft and licks the old men's dicks. Her beautiful legs peeking out from her tight skirt and her sexy hips get the old men hard as a rock. Creampie sex gives the men confidence. During a special lesson, she gathers retired men together for a vegetable masturbation show.