Crepuscule is an Korean webtoon by Mirchi and Yamchi, and follows the story of Lark Alfen living in an alternate world where monsters live and lead fairly normal lives.
Lark, is different from the rest of the kids. He has red eyes just like Vampires do and he is bullied by the other kids for that. One day he meets Setz a genuine Vampire of a Noble clan who is the only one that doesn’t call him monster or bully him. Eventually they become friends but when an incident happens, Setz does not want to lose a friend so he invites him to his home... Of course, the said home is in Crepuscule, where vampires, succubi, ghosts, zombies, and werewolves live, which makes Lark's identity as a human a bit of a problem.