RCTD-749 ROCKET 18th Anniversary User Request Festival: A Remake of a World Where Anal Authentication is Commonplace - Fingerprint authentication, facial recognition, no, the future of biometric authentication will be the anus!? - Yuri Sasahara

In 20xx, an era has arrived where biometric authentication using the anus—something you would never normally show to anyone—is commonplace... This time, the setting is a high-security office! Open and close your anus to authenticate and register your anus! Your butt and anus play a major role in everything from entering the building to accessing the safe! A series of scenes that will make you smell! There are also embarrassing farts and wide-open anal sex scenes!