A one-night stand with a woman with a large buttocks on a night bus, a 300-kilometer journey to Tokyo, involving penetration. (Misono Kazuka MOON-015)

A woman who takes a night bus once a month to visit her husband in Tokyo. On the bus, she befriends a man who is kind to her the whole way, and they quickly become close. Both married, they are attracted to each other and have a forbidden affair on the bus. After arriving in Tokyo, they visit the deserted tourist spots and have a late-night adult date. They spend the night at a nearby hotel, making love until morning. Suppressing their desire to take their relationship further, they go to their respective families.