Two days after seeing off his wife on a trip, the living room was already in disarray. The savior who appeared at that moment was his wife's sister, Natsuhou. Despite being surprised by her sudden visit, Kenichi gratefully accepted her help with household chores. In return for her kindness, he promised to let her stay over. That night, as Kenichi relaxed in the bathtub, naked Natsuhou pounced on him. 'What are you doing, sister-in-law!?' 'I thought I'd wash your back.' The softness of the large breasts pressed against his back made him involuntarily harden…
