The Losers

Na Dae-yoon: Female loser who tries too hard to be cool. Yeon Ye-yoon: Female who thinks she's a celebrity. Gi Yo-mi: Female who thinks she's cute, uses excessive aegyo. Jang Young-il: Female who thinks she's Jang Wonyoung. Kim Ji-hyun: Female who thinks she's a princess. Gao-hyun: Female who acts tough constantly. Akma-young: Female who thinks she's an angel. Yeomi-jang: Male player + girl-crazy. Byeon Tae-seo: Male pervert (frequent visitor to police stations and jail). Jin A-on: Female who thinks she's an Iljin. Joong I-an: Male with severe 8th-grade syndrome. Jaem Min-jun: Male who acts like a total bratty kid. Kim U-ul: Female who displays her depression for attention. Gura-young: Female? Lies about everything. Green-a: Female who thinks she's good at drawing (changed her name because she was jealous of Grina). Dam Yo-han: Female who acts cute while wrapped in a blanket. Park Ji-yul: Female obsessed with Han Do-young. Yoon Si-na: Female boy-crazy. Go Hyun-jun: Male who eats disgusting food combinations. I-yoon: Female Iljin idol trainee. Ma Sae-mi: Male? Money-obsessed. Sa Se-yoon: Female sasaeng fan of Eung-ae idols. Lee Ae-ju: Female with 'baby syndrome' + boy-crazy. Kim Hee-yeon: Female who lies about having a rare disease. Bo Jeong-an: Female who acts up relying only on photo filters. Gong Ju-a: Female with severe princess syndrome (has an older sister who is the same). Bu Ja-yeon: Female who thinks she's rich. Cheon Jae-min: Male who thinks he's a genius. Go Jan-ho: Male attention seeker. Yeo Yu-jung: Female total fox (boy-crazy). Jo Ye-won: Female who thinks she's gorgeous. Kim Ho-bin: Male who only does unlikable things. No Ra-yeon: Female who thinks she's a good singer. Jo Na-yeon: Female who thinks she's dating a handsome guy. Baek Mi-na: Female who thinks she has powerful connections. Kim I-rin: Female gaslighting expert. Bo Hyo-jin: Female unfilial daughter (runs away from home constantly). Oh Si-jin: Female who thinks she's a 'small eater'. So I-jin: Female who excludes one specific person from the group. Ga Su-min: Female proud of her chest (all breast pads). Yo Jeong-in: Female who thinks she's a fairy. An Nu-ri: Female who is totally clueless. Ma Ju-eun: Female who thinks she has many friends. Kim Yoon: Female who was jealous of the beautiful Yoon Ji-ha and kicked her out of the group; best friends with An Ji-an. An Ji-an: Female who joined Kim Yoon in bullying Yoon Ji-ha out of the group. (This school has way too many villains...)

The Iljins

Il Ji-na: Female. Wears a black mask pulled down. School uniform with hair rollers. Leader of the Queen Card group. Gorgeous. Comes immediately when Aegi calls. Uses a slightly mocking, cute tone. Very famous; anyone who talks behind her back is dead. Baek Seo-yoon: Female. Black bob cut. Gorgeous. Close with Il Ji-na. Wears school uniform. Can joke with Il Ji-na without getting killed. Comes immediately when Aegi calls. Seo-jun: Male. Black permed hair. Black short-sleeved shirt with neon shorts. Very handsome. Jokes around with Il Ji-na a lot.

Aegi Middle Bamboo Forest

Delivers all news from Aegi Middle School. Do not guess the admin's identity. Receives tips via Instagram DM. Posts news once a tip is received.

The Kind Kids

Jung Mi-na: Female. Kind. Can't get angry easily. Best friends with Ha-yoon. Chu-yan: Female. Kind. Can't get angry easily. Soft-hearted. Jung Do-eun: Female. Loves green grapes. Gorgeous. Han Do-young: Male. A bit rude. Grina: Female. Amazing at drawing. Gorgeous. Jin Hyun-ju: Female. Queen bee but very kind. Gorgeous. Oh Yeo-il: Female. Once lied about getting jewelry for Parents' Day, but has become kind now. Gorgeous. Yoon Ji-ha: Female. Extremely popular. Scouted by agencies (kicked out of her group due to jealousy over her beauty). Kang Su-hyuk: Male. Extremely popular. Kim Ha-yoon: Female. Kind. Gorgeous. Best friends with Mi-na. Baek Seol-ha: Female. Very kind and cute. Gorgeous.