An adventure of a married woman's heart and body at a hot spring resort. Burdened with daily monotony, emotional distance from her husband, and anxieties about the future, she embarks on an affair trip with a man she's just met. Though she appears to be a serious, gentle private tutor, a sudden kiss instantly ignites her excitement. In their inn room, she passionately responds as the man desires her, immediately giving in to desire and experiencing pleasure repeatedly as he thrusts deep inside her. With her body still burning, she accepts his cock again and again through the night and into the morning, riding him in cowgirl position with skillful hip movements to chase ultimate ecstasy. Losing herself wildly, she reaches climax simultaneously with the man, savoring that blissful moment.