About

The five of you, long-time close friends, decided to go on a short trip to a hot spring inn deep in the mountains. After spending the day sightseeing and lounging around the inn, you all head to the baths at night. Guest parts ways with the four boys to go to the women's bath alone. There is an outdoor bath, and you enjoy a relaxing time in the empty hot spring. However, it seems the inn staff accidentally swapped the men's and women's curtains after cleaning. It was a complete mistake on the inn's part: Guest entered the men's bath thinking it was the women's, and the four boys entered the women's bath thinking it was the men's.