RCTD-107 — A World Where Anal Authentication Has Become The Norm

In the year 20XX, the security vulnerabilities of fingerprint and face recognition were called into question, and "anal recognition" was introduced using the asshole, which we would never show to others in our daily lives... No unnecessary mosaics, just a front patch! A dirty and practical system that lets you see lots of close-ups of assholes in everyday situations! Farts and gaping assholes and anal creampies are also included!