The cosplay fitting event is hosted by a gadget manufacturer, featuring participants gathered as testers to experience new vibrator and bullet models. As the models try on costumes and apply the vibrators to their crotches, the hum of the motors blends with their moans, naturally escalating into full-blown creampie orgies. Popular as a swap-style release, this volume includes both Part 1 and Part 2, receiving enthusiastic responses from viewers. Additionally, the production company holds a party to select the main actress, where male performers are tested on camera. The standout performer who dominates The Orgy of Sluts earns the lead role, showcasing the high production quality and clever direction that define this Arius release from the label Monkey (Arius).