JOHS-026 My mind is blank, it's a 3-day, 2-night affair! My first hot spring swap trip. I swapped my big-breasted girlfriend with my friend's girlfriend with a childlike figure and we had some crazy sex.

Nishijima and Okada, two drinking buddies from the neighborhood, find themselves revealing details about each other's sex lives when they get drunk. Interestingly, they discover that they have feelings that are close to sexual affection for each other's partners. So the two couples go on a hot spring trip together and plan to engage in some secret swapping without the woman knowing...