The "Happening Hotel" is a place where insatiable men and women gather, and obscene sexual acts unfold daily. Arriving before opening today is Mayu, a married woman. "I've only ever done ordinary things, but I came here because I'm interested in various things." Despite her simple aura, Mayu has refined features. When she undresses, she surprisingly reveals a voluptuous G-cup body. Overwhelmed by this gap, the hotel manager, Happening Saito, gets horny! He fucks her deep inside her pussy with a barrage of perverted positions!