A spin-off project due to popular demand! Two friends, a man and a woman, on a college graduation trip to a hot spring resort are left alone in a mixed-bathing open-air bath for a "mixed-bathing monitor experience"! It's thrilling to see your friend naked for the first time! Will the two friends get turned on while bathing? We'll take a close look at four beautiful college girls who are excited on their last trip as students!