もしも…終電逃した男女の友達が「混浴温泉で洗いっこ」体験したらどうなるの…！？果たして一線を越えてSEXしてしまうのか！？寺田さん（22才）大学4年生須藤さん（22才）大学4年生夏目さん（24才）飲食店勤務向井さん（27才）飲食店勤務
What if...my male and female friends who missed the last train were to experience ``washing up in a mixed bathing hot spring''...! ? Will he really cross the line and have sex? ? Mr. Terada (22 years old), 4th year university student Mr. Sudo (22 years old), 4th year university student Natsume (24 years old) works at a restaurant Mr. Mukai (27 years old) works at a restaurant
