A married woman's heart and body tremble with hot spring waters and love. In the winter of 2013, a married woman reunites with a close male friend after three months, traveling together to a hot spring inn. As soon as they arrive, they begin affectionately touching, their bond deepening further in the bath, arousal building intensely. Back in the room, she rides him in cowgirl position, grinding her hips as if to relieve pent-up desire, bringing him to the edge of climax. She pleads, "Come! Cum inside me!" The next morning, in the outdoor bath, she writhes in ecstasy as her pussy is licked. Birdsong mingles with her moans, and as he thrusts his cock deep inside her, she cries out in breathless ecstasy, reaching a shattering orgasm.