The unremarkable freelancer Bun works as a security guard at the 'Manetsu Secret Treasure Museum' just before it closes. But at night, the mannequins move around like they're alive! It's a secret treasure museum, so there are already plenty of slutty women! They go wild with vibrators and dildos for the first time! Super-class S-cup succubus blowjobs manage ejaculation! The mannequins strip to prevent closure!
