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！？星さん（22才）大学4年生桐島さん（20才）大学2年生大須賀さん（20才）大学2年生上原さん（22才）大学4年生
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. Hoshi (22 years old), 4th year university student Mr. Kirishima (20 years old), 2nd year university student Mr. Osuka (20 years old), 2nd year university student Mr. Uehara (22 years old), 4th year university student
