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While my wife was returning home to give birth, her older sister, Kyoka, came to help with the housework. Kenji, who was struggling to balance work and housework, happily invites her in, but Kyoka's true purpose is her body. Unaware of this, Kyoka begins to touch Kenji excessively while he is cleaning. Kenji blushes and runs away, but she chases after him and makes a dangerous temptation, saying, ``No one will find out now. Don't you want this body?''