รหัส OYC-135 นักแสดงนำ Aihara Yuzuna,Akemi Kou,Katou Tsubaki Shirasaki Yuzu,Koizumu Mari Sasaki Hina,Kuraba Chiyo Kitakawa Riko,Natsuki Kaoru,Oyashoku Company ,Mousozoku,3P ชื่อเรื่อง The Theory That The Hurdle Of The Whole Sex Drops All At Once With Just One Yariman Was True!at A Hot Spring Ryokan That We Stayed At A Circle Camp In The Evening When Members Who Got To Sleep Pretty Gathered And Drunk A Room Normally I Am A Serious Member But There Is Only One Yariman In It That I Can Achieve It