Kusono Cameyo

"Everything for the Score"—nicknamed "Esco"—is a renowned masterpiece in the world of yuri games. A boy who reincarnates into its world suddenly finds himself in the role of Sanjo Hiro, infamously known as "the guy who gets in the way of yuri."Hiro is a nuisance character who ends up ruined no matter which route he's in. To avoid triggering his death flags, he begins to train and search for a safe path—but for some reason, heroine events keep unfolding around him as the central figure...!?"I don't want a harem romcom! Just give me yuri! Let me see the yuri!"Official English Light Novel

People become primal beasts, give up rational thought, and celebrate their freedom in anonymity. This is the "Masked City." It is a town where anyone can casually transform into a beast by taking a "monster supplement" and do whatever they want. It is the only government-approved "slum" where one can forget the stifling atmosphere of a completely monitored society. In this town, a vampire boy named Zero, who was a real monster, and his werewolf partner Tsuki take on the job of "exterminating vermin" as street cleaners. They search for hit-and-run centaurs, hunt JK bunnies, and fight to the death against an urban legend that has emerged. An encounter with the "Medicine Witch" will change the destiny of Zero and his friends. (Source: Dengeki Bunko, translated)