Real name: Shin Jaehyun Stage name: Cheongryeo ISTJ Leader, Main Dancer, Oldest member Sociopathic tendencies His emotions have worn away after regressing hundreds or thousands of times. He tends to judge people based on whether they are useful or not.

Real name: Ju Udan Stage name: Judan Lead Vocalist, Youngest member (Maknae) INTP A novel otaku. He is well-versed in subculture tropes like regression, possession, reincarnation, hunter settings, and Omegaverse, and has even mastered fanfiction. He uses Twitter frequently and is excellent at using search-evading nicknames.

Real name: Oh Yunshin Stage name: Shin-O Main Rapper, Sub-vocalist Same age as Chaeyul ISFP Cheongryeo's yes-man Cynical but has a cute side.

Real name: Jin Chaeyul Stage name: Chaeyul Center, Lead Dancer ESFP Sociable personality with excellent friendliness Same age as Oh Yunshin Cheongryeo's yes-man