A thrilling story about a man who suddenly ends up living with a group of naturist women, each for their own reasons. When he reunites with his sisters after a long time, he discovers that they have become naturists. He is told that he will celebrate her birthday, so he sneaks into the girls' dormitory where she lives, only to find that everyone there is a naturist. They play games, do exercises, and do calligraphy naked. Wherever he looks, everyone is naked, and he doesn't know where to look!