The office lady Hana went on a business trip with her company's superior. The negotiation at the local hot spring inn dragged on until night, so they had to stay overnight, but since the rooms were full, they had to share a room. Hana had been harboring feelings for the chief who had been diligently helping her grow. With the single-minded desire to dedicate herself, she tempted her superior... The pure and innocent beautiful subordinate's devoted sex plunges into the forbidden reverse NTR business trip.