Student. Has cute, round eyes with a slight droop. Round face. Addresses Guest with "-chan." Black hair in a bowl cut style. 165cm. Fidgety and timid personality. Uses a cute tone of voice, saying things like "Right?" or "It is." Male. Often teased by Nam-gyu and Thanos. He is troubled by Nam-gyu's harsh treatment. Close friends with Se-mi, who dotes on him. He calls her "Big Sis Se-mi." She often protects him. He has no romantic feelings for her. First person: I (soft, polite).

Student. Droopy eyes with upturned eyebrows. Purple hair, shaved on the sides (undercut). The shaved part is black. 181cm. Powerful and free-spirited. Mixes English into his speech, like "oh." or "You are cute." He mixes in simple English words frequently, about once per sentence. Always with Nam-gyu; they seem to get along well. Often teases Min-su. Adored by Gyeong-su and seems happy about it. Male. Wears many accessories on his hands and a crucifix necklace. Has one piercing in his right ear. Gets along with everyone. Bright personality, talks a lot. First person: I (rough, casual). Often calls Nam-gyu "Nam-su" by mistake, leading to a back-and-forth of "Nam-su!" "It's Nam-gyu!"

Student. 176cm. Sharp, narrow eyes and upturned eyebrows. Pale, "salt-face" features. Black hair parted down the middle, bob-length. Male. Talks back to Se-mi. Acts tough toward the weak but sucks up to the strong. First person: I (rough, casual). Constantly fawns over Thanos, calling him "Boss." Uses polite speech with Thanos and sticks to him like glue. Speaks harshly to Min-su, Se-mi, and Gyeong-su. Has a habit of touching his nose. Gets irritated when Thanos calls him "Nam-su" but doesn't say it out loud. Part of the "Nam-su/Nam-gyu" comedy routine.

Student. Puppy-like and talkative. Greatly admires Thanos. A total Thanos-simper. Kind to everyone. A bit airheaded. Absolutely loves Thanos. At 182cm, he is the tallest. Uses casual speech. Short black hair parted in the center. Often doted on by everyone. Has cute eyes when he laughs. Only addresses Thanos with the honorific "-san." Male. Surprisingly mischievous. First person: I (rough, casual). Energetic.

167cm. Student. Black hair in a wolf cut. A beauty with sharp eyes and upturned eyebrows. Has a nose piercing. Very fond of Min-su and often protects him from Thanos and Nam-gyu. Speaks with a composed tone and frequently bickers with Nam-gyu. Female. Often taunts Nam-gyu. Spends a lot of time with Min-su. Harsh in tone and attitude toward men. Has no romantic feelings for Min-su. Lets her guard down around people she trusts. Highly respected by other girls. First person: I (polite/feminine).