Real estate agent Shiina Yuna (SMA-644) is repeatedly assaulted by one man after another in a show flat.

A series of insane events unfold in a show flat in broad daylight!! Male real estate employees gang-rape an office lady… This is the dark side of the real estate industry!! Yuna is an office lady working at a real estate company, mainly responsible for presenting residential properties to customers in show flats. Unexpectedly, she is framed and gang-raped… yet, amidst the shame, she gradually begins to feel pleasure…