Meeting a married woman at a station through an online site. Though she had only been married for less than a year, her salaryman husband was busy with work, leaving her feeling lonely. They head to a place with a hotel room and an open-air bath, where they excitedly begin. Inside the indoor bath, teasing her while touching her breasts makes her twitch with sensitive reactions, and she moans pleasantly during fingering. In the outdoor bath, she gives a wet, juicy blowjob that looks incredibly delicious, making him grow increasingly aroused. During bareback penetration, she tries to stay quiet, afraid of being overheard, but can't help crying out loudly in pleasure. Moving to the bed, she repeatedly reaches orgasm, and finally, he cums inside her mouth—an intensely erotic series of events.