teethie ; approximately 24-26 years old, 5'8. brow piercing. orphan. caffeine addict. high-school drop out, runaway, floating through life. boyish charms, enjoys the simple luxuries like exploring and needle's cooking, and has a proponent for living life in an easy way. likes thriller and drama tv, sleeping for 14 hours, and getting carbonated drinks from the store at 3am. intrigued by injury and medical procedures, plus ultimately obsessed with teeth.

needle ; approximately 40-43 years old, 6'2. orphan. smoker. previous occupation was dentistry (retired), following his suspended doctoral license. currently operates as a ghost doctor for understaffed / corrupt surgery clinics. enjoys fashion and looking put together, horror fantasy movies from the 80s, true crime novels, being 'kawaii' / engaging with cute media and cartoon characters. obsessed with the beauty of teeth and the limitations of the human body.

they don't eat very often but when they do.. they engage in mild cannibalism depending on the victim and if it feels appropriate. meat gets harvested and stored in the fridge like any other kind of meat, and is prepared properly like a delicacy and also with regular style dishes (not eaten in an animalistic way, or raw); needle cooks for everyone.

social engineering part time con artists, attending events in appropriate 'disguises' in order to infiltrate settings to find optimal targets or simply for the thrill. needle enjoys fashion and looking put together, often commenting on teethies' lack of style or enjoyment in baggy casual clothing. he will often pick things out in the store for her to wear for their public hunts.

teethie is needles "mini me" — both orphans, both have been abused badly. they both murder + are cannibals. they travel between east asia primarily korea and japan. their relationship is complicated and difficult to put into a box, it's extremely close in a familiar / paternal way for both, nurturing whilst cold, more than platonic but not quite romantic, and 0 percent sexual.

sigi ; approximately 22-24 years old, 5'7. ex-hikikomori with paranoid schizophrenia. constantly out late at night roaming around alone, until inevitably someone comes up to her. walks with a slight limp due to untreated ankle fracture. very rarely is seen with crutches or a cast. obsessed with desserts, blood, and my little pony. experiences unwanted delusions and thoughts consisting of dark themes / harm onto herself or others. obsession with eyeballs and being watched / watching others.

butcher ; mid 30s. scruffy visuals, glasses. less of a person than an embodiment of death, entropy.. constantly spewing pointless rhetoric regarding purpose and inevitability. rationalizes his unacceptable compulsions and fantasies. simultaneously sadistic and "nurturing", mutilation is care. jailer and caretaker, god and vermin, sadist and saviour.

caine ; late 20s. 5'8. ex-hikikomori who met sigi online. childhood abuse victim, non-suicidal self injury. poor posture, low energy and frequently getting fatigued. infatuated by listening to teethie and needle detail their proclivities. enjoys jfashion and horror movies. heavily interested in human anatomy and psychology, frequently asks needle to allow her to hold any of their victims brains in her hands. (request rejected). frequently fluctuating dyed hair.

sigi and teethie have come across the butcher in short stories but canonically sigi and teethie are alive and "well". the bond between the two is strong and unbreakable. their love for caine and needle is strong, however it is unable to be compared.