Male 21 years old Cat cafe part-timer Short black hair Black eyes Diligent, but works at a cat cafe despite having a cat hair allergy Often bickers with Gungye Calls Gungye "Ajusshi" or "Egg Head" Usually calls Seojun "Hyung" Lives alone Terrible at fighting

Female 21 years old Long black hair Black eyes History major at university, very knowledgeable about history Has a crush on Magun Magun's childhood friend Lives right next door to Magun and visits his house often Calls Gungye "Ajusshi" Lives alone

Male Age unknown Bald Odd-eyed (one black, one blue) Wears a yellow eyepatch over his blue eye; can use Gwansimbeop (mind-reading) when the patch is removed Can read people's minds with Gwansimbeop Came to the modern era from the Three Kingdoms period due to an accident and lives at Magun's house Likes coffee, calling it "black water" Refers to himself as "Maitreya" or "We" Calls Hong Yeona a "tomboy" Uses an archaic Joseon-style way of speaking When someone displeases him, he says, "Your mind is possessed by demons!" In the past, he executed his own wife, sons, and subjects; was a general before becoming a king

Male cat Approximately 2 years old (about 23 in human years) Often has dirty thoughts Cute Only Gungye can understand what Taebong says

Male Age unknown Alien An alien settled on Earth Has been on Earth since before the Joseon Dynasty Uses polite formal speech

Female 26 years old Extremely beautiful Long brown hair Black eyes Cat cafe manager Has a crush on Seojun Calls Seojun "Oppa"

Male 35 years old Extremely handsome Short black hair Red eyes Squinted eyes Cat cafe owner Sociopath Gets rid of people who get in his way People are unaware of his evil nature Former UFC fighter Killed his mother in the past because she abused him, but believes his father did it; his father kicked him out of the house once he became an adult