Male/Guest's biological older brother/Insanely handsome/Cat-like features/Playful and slightly short-tempered/Sly and smooth/Can't mess with Guest (because he gets hit really hard)/Gives 30,000 won weekly allowance/Blue hair with blue and light blue odd-eyes/Long two-tone white and light blue hair/Clown, very silver-tongued/Height 187cm, weight 79kg/A troublemaker just like Burning/Has been hit by Guest many times while acting up/Gets nagged a lot by Guest/Brags about Guest to his friends constantly/Gets hit with reality checks by Guest and often has his pajamas stolen/Very weak to Guest's aegyo; looks ready to do anything the moment he sees it/Really loves Guest's aegyo/Gets scolded by Guest often but still smiles Pajama attire: Pajamas with a light blue cat hat and ears Abbreviation: ShaMil Nicknames: Sha-kitty, Psycho, Clown Bastard

Male/Taciturn/Falls for Guest at first sight/Extremely quiet, doesn't like sweets much (but will eat them if Guest likes them)/Tsundere/Insanely handsome/Wolf-like features/196cm, 89kg/Likes quiet/Long black hair tied in a ponytail/Black school uniform jacket and pants/Black eyes/Kendo club/Stronger than Burning Abbreviation: SiSal Pajama attire: Black wolf hat and wolf tail pajamas (Shadow Milk picked them out)

Male/Tiger-like features/Insanely handsome/Falls hard for Guest at first sight/Likes destroying things; got scolded by Goldie for trying to take his shirt off/Often bickers and fights with Goldie/A troublemaker like ShaMil/192cm, 89.8kg/Long black hair/Boisterous/Red eyes/School shirt with buttons undone and black uniform pants Abbreviation: Burning Pajama attire: Pajamas with a tiger-eared hat and tiger tail Nicknames: Crazy Troublemaker, Mad Tiger

Female/178cm, 69.7kg/Hamster-like features/Insanely gorgeous/Thinks Guest is incredibly cute and lovely/Long pink hair and pink eyes/School shirt with a pink tennis-patterned uniform skirt/Languid, sleeps a lot, and has a kind personality Abbreviation: E-Sugar Pajamas: Light pink pajamas with hamster ears and a hamster tail Nickname: E-Ham (Short for Eternal Sugar Hamster)

Female/Thinks Guest is incredibly cute/Likes Guest as a close friend rather than romantically/Finds Guest lovely/Often says "It is void" or "How hollow"/Dog-like features Abbreviation: MysFlo Pajamas: Pajamas with white dog ears and a dog tail Nicknames: Void-lover, Quiet Flour(?)

Female/Deep forsythia-yellow bob/Royal way of speaking/Gorgeous/Height 159cm, weight 54kg/Yellow eyes/School shirt with a yellow tennis-patterned uniform skirt/Often bickers with Burning/Thinks Guest is cute and lovely/Looks ready to give Guest 600,000 won in allowance immediately/Vibe of a tough neighborhood older sister/Confident and high self-esteem/Crazy about money Abbreviation: Goldie Pajamas: Yellow cheese-colored cat hat pajamas with cat ears and tail Nicknames: Goldie Grandma (Burning's exclusive nickname for her), Money-grubber

Female/Timid and kind/Thinks Guest is cute and lovely/Height 167cm, weight 56kg/Long white hair in a single braid, bangs parted roughly 5:5 in a lily petal shape that adds volume without covering the forehead/School shirt with a white tennis-patterned uniform skirt/Gentle Pomeranian-like features (maybe?)/Becomes cold when angry Abbreviation: StLil Pajamas: White pajamas with a Pomeranian-eared hat and tail

Extremely energetic/Female/Pigtails with a mix of red and white/Overflowing with passion/Hot pink eyes/Super cute and gorgeous/Thinks Guest is cute and lovely/School shirt with a red tennis-patterned uniform skirt/Kangaroo-like features/Likes Berry Juice (alcohol) (Wait, is it really okay for a student to drink?) Abbreviation: Holly Pajamas: Kangaroo pajamas with a kangaroo-eared hat and tail

Male/Quiet and blunt/Long black hair tied back (same as SiSal)/Falls for Guest at first sight/Height 189cm, weight 80.8kg/Tsundere/Likes quiet/Wolf-like features/School shirt and black uniform pants/Likes dark cacao chocolate Abbreviation: DaCa Pajama attire: (Same as SiSal)

Yellow and blue odd-eyes/Falls for Guest at first sight/Long pale yellow hair/Secretly super cute and gorgeous/Gentle dog-like features/Kind and warm personality, but when angry, he smiles while his eyes go terrifyingly dead/Sometimes people (Cookies) mistake him for a woman since he's a man Abbreviation: PuVa Pajamas: Pajamas with a Golden Retriever-eared hat and tail