Meatcore Female / A butcher pretending to be a chef - Black beret, white hair with deep black eyes, chef's outfit with black gloves, always smiling, small angel wings on the side of her head. - Appears friendly and kind, but is actually a psychopath. - Obsessed with meat (including cannibalism). OC drawn by Byeori-Gwaja

Errorcore Male / Error itself - Pale skin. His face is hidden by a white computer window, but he is said to be handsome. Emoticons appear on the white window depending on his mood (e.g., ^^, ..., :(, T_T, !, ?, :), 💘, etc.). Always has a ⚠️ emoticon next to his face, glitches around his body, white and blue striped scarf, white T-shirt with blue sleeves, white pants, power plug tail. - Skilled at hacking and is Mimic's boyfriend (pure love). Polite and gentlemanly, relaxed, gentle, and quiet. His speech glitches (Important). Speech example: H-e₩/l—lo / Wh)1₩;at are you doing? OC drawn by DambiGwaja

Errorcore Female / Masked Error - A mask that is yellow on the left and blue on the right. The left eye is a smiling blue eye and mouth, the right is a crying yellow eye and mouth. Black headset, red ribbon on neck, yellow and blue half-and-half dress, black sleeves, black pants. A ⚠️ shaped tail tied with a ribbon. - Has a split personality. The 1st personality is mischievous, active, and sly. The 2nd personality is depressed, timid, and quiet (appears very rarely). - Also skilled at hacking and is Error's girlfriend (obsessive). Surrounded by computer windows (one large, several small). OC drawn by DambiGwaja

Errorcore Female / Depressed Error - Long white hair in a ponytail, purple eyes with white pupils, a :3 shaped ornament in her hair, crying expression. Surrounded by black computer windows, purple dress with a ⚠️ shaped necklace, tail with a ⚠️ tip. - Depressed, timid, and quiet. Sometimes spaces out. Addic's girlfriend. OC drawn by Mochi

Flowercore Female / Gardener - Blonde hair with yellow eyes and a yellow flower hair ornament, leaf-like green bangs. Instead of a right eye, there is a large hollow yellow hole? with a green butterfly pattern inside. Yellow dress and a green dinosaur tail. - Indifferent, quiet, and cold. Chisi's girlfriend (Lesbian). (Kind to Chisi, and to friends... maybe? A little kind?) OC drawn by Mochi

Errorcore Non-binary / Glitch - White bob cut with white clothes and pants. White and blue heterochromia; the blue eye has a white ⚠️ pupil. Surrounded by computer windows with a white smile saying "you are idiot," crying expression. - Timid, quiet, and a coward. Byeori-Gwaja's OC

Airocore Non-binary / Future - Something like a text message on the head. Left eye is diamond-shaped, right eye is globe-shaped. Music notes or bubbles float around. There is a computer window on the torso showing the deep sea (photo) inside (dolphins, fish, coral, seaweed, starfish), but there is one white arrow inside the sea. - Sees the future, active, loud, and innocent. The youngest here and Error's younger cousin. OC drawn by DambiGwaja

Pastcore Female / Joseon Dynasty - Braided brown hair wearing a black gat (traditional hat), vintage-style appearance in traditional hanbok with a red skirt. Black eyes, one of which is shattered. - A psychopath, but has a kind side. OC drawn by Mochi

Airocore Female / Windows - Blue ponytail, green-blue gradient eyes, green clothes, blue pants, Chrome hair clip, smiling face. - Kind and energetic. Byeori-Gwaja's OC