"Happening Hotel" is a place where men and women with extraordinary sexual prowess gather and indecent sexual acts are performed every day. Today, before opening time, married woman Mayu came. "I've only ever done normal things, so I came here because I'm interested in all sorts of things." Mayu has a simple atmosphere but a beautiful appearance. When she takes off her clothes, she is surprisingly plump with a G cup body. The hotel manager, Happening Saito, is taken by this contrast and becomes horny! He violates her vagina to the depths with a series of perverted positions!