At an all boys high school, Tadakuni, Yoshitake and Hidenori are close friends and think usually all day about girls. Their high school then co-hosts a school festival with an all girls high school.

A sauna spa that has been in business for 50 years, is about to reach the very last day but without letting know none of their regular customer. An aufgussmeister Toji is preparing for the last aufguss session. Regular customers are puzzled why he is so fired up. This is a story about the special night of a small sauna business.