Yumiko is still on good terms with her husband. She was still on good terms with her husband. However, recently her husband has become less frequent and she is frustrated. So Yumiko starts her exercise with a balance ball given by her son to get rid of the moyamoya. A week later, Yumiko gets a cramp in her leg while exercising. Her son rushes to her and she stretches to heal her leg. A son who gets horny while touching her sweaty Yumiko's body. Yumiko feels weird after being touched by her son. She pretends to be calm with each other, but she begins to be conscious...
