This is a list of characters that have been introduced or referenced in the story so far, along with what we know (or think we know) about them. It should be spoiler-free if you've read up through chapter 56, apart from a few minor details. For example, I went ahead and included some of the magic affinities that weren't specifically mentioned but were implied by context, so they're not especially spoilery.
Brackets indicate a name that we haven't learned yet.
Name
Species
Affinity/Domain
Description
Alashan Iffea
Human
Saklo Renquis' assistant. Works for the Merioc Research Alliance.
Alula
Revenant (Cockatrice)
Puppetry
[Bero's Oldest Daughter]'s familiar.
Amisi
Taua
Mental
Mideis Jidarin's familiar.
Araela Valin
Human
Researcher for the Wizard Association's Research Institute.
Ariom Denifor
Human
Void
The secondary main character. Thenio Iterune's guardian. Grandmaster enchanter. Also certified in necromancy, alchemy, and elementalism. Specializes in enchantment restoration and tailoring.
[Ariom's Mother]
Human
Void
Battlemage. Died from magic instability as a result of participating in the Magic Corps' Amplification Project.
Bauto [ ]
Human
Teselin Rhimari's apprentice. Works in the Royal Academy's Magic Affinity Research Lab.
Bero Denifor
Human
Life
Ariom Denifor's uncle. Master necromancer. Also certified in healing and magic zoology. Used to work as a doctor at the Stability Center but left to start a spectral beast farm. Raised Ariom after his mother died.
[Bero's Oldest Daughter]
Human
Life
Master necromancer. Manages the family farm when Bero is away.
[Bero's Son]
Human
Pharmaceutical alchemist. Did his apprenticeship with Relisa Sephior.
[ ](Bubbles)
Human
Demon hunter. Second most powerful wizard in Kafron. Married to (Hurricane).
Butterfly
Cat
—
Thenio Iterune's cat when he was a child. A short-haired calico with a split-colored face and a butterfly-shaped spot on her side.
Casturi
Parrot Gryphon
Storm
Jasel Yaron's familiar. A retired circus gryphon.
Chanea [ ]
Human
Life
Focilo Sephior's apprentice. Works at the Stability Center.
Ciresi
Mythic?
One of the two figures that appeared in Ki'shiu's dream in chapter 52.
Essu
Mythic
Snow
Mythic beast who lives in the Northern Wasteland and monitors the First Rift. A large white wolf with red eyes.
Eteon Idarin
Human
? / Dream
Thenio Iterune's long-time friend. Uncertified magician and mythic beast's agent. A mysterious woodcarver who sells his carvings in the park near Thenio's house.
Falco
Dragon
Saklo Renquis' familiar. A bronze-colored dragon.
Focilo Sephior
Human
Life
Grandmaster healer and necromancer. Head of the Stability Center. Thenio's doctor. Phoenix child.
Garem Ranior
Human
Wind
Vice-Captain of Kafron's Royal Guard. Head of the Demon Crimes Division. Former combat wizard.
[ ] Hibien
Human
Professor who participates in the Pre-War Era research group at the Royal Academy.
Humerus
Revenant (Dragon)
Puppetry
Bero Denifor's familiar. A snarky spectral beast who lives in a dragon skeleton and loves pranks, puns, and pygmy gryphon eggs.
[ ](Hurricane)
Human
Demon hunter. Most powerful wizard in Kafron. Married to (Bubbles).
[ ](Hydra)
Human
Mental
Kafron Magic Corps' Field Commander and Central Division Commander. Fifth-rank battlemage. One of the greatest successes from the Amplification Project.
Iggy(Igneous)
Dragon (Morphed Violet Flare)
Void
Everyone's favorite little black dragon. Ariom Denifor's familiar. Hatched from a silent egg. Loves toys and spicy fish balls.
Isia [ ](Sword Queen)
Human
Metal
Demon hunter. Namyis Ivoren's trainer/adoptive mother.
[ ](Jackal)
Human
Demon hunter. One of the greatest successes from the Amplification Project.
Jasel Yaron
Human
Wind
Acrobatics trainer for Kafron's Magic Corps. Former circus performer. Helped with Riomel Denifor's rehabilitation training.
Kalion Obarin(Sunfall)
Human
Fire
General and head of Kafron's Magic Corps. Former battlemage who retired from active duty when he developed a severe case of magic instability. Trained Ariom Denifor's parents.
[ ](Ket'shiu)
Mythic
"Lord of the Forest." A mythic beast who lives in Ket'qe.
[ ](Ket'yia)
Mythic
"Lady of the Forest." A mythic beast who lives in Ket'qe.
[ ](Ki'shiu)
Mythic (Dream Beast)
Dream
"Lord of Dreams." A mythic beast who's been watching over Thenio Iterune and trying to find a way to stabilize chaos magic.
Kino
Storm Hound (Bloodwind)
Storm
Garem Ranior's familiar.
Kleyo Iterune
Human
Wood
Thenio Iterune's youngest brother. Loves golems and wants to become an enchanter.
Kymia Larinos
Human
Guildmaster of the Kamari Branch of the Enchanter's Guild. Grandmaster enchanter. Specializes in aesthetic enchanting and magical luthiery.
Lem Iterune
Human
Clay
Thenio Iterune's younger brother. Loves cooking and wants to become an alchemist. A loner who dislikes being touched.
Lerian [ ]
Human
Life
Focilo Sephior's apprentice. Works at the Stability Center.
Lunon Iterune
Human
Earth
Thenio Iterune's father. Works at the Perinith Workshop as a scribing assistant.
[ ] Lysien
Human
Captain of Kafron's Royal Guard.
Mala
[Squirrel-like Magic Beast]
Sholi Nidom's familiar. A large green squirrel.
Melea Nistren
Human
Life
Grandmaster necromancer. Professor and head of the necromancy department at the Royal Academy.
Melinei
Mythic?
Mentioned by Ki'shiu in chapter 37.
Mideis Jidarin
Human
Mental
Royal Guard Inspector. Master enchanter. Specializes in Pre-War artifacts.
Myshan Fronir
Human
Second king of Kafron. Also known as Myshan the Orderly.
Namyis Ivoren(Ice Queen)
Human
Ice
Sixth-rank battlemage. Member of the First Squad of the Central Division of the Kafron Magic Corps. Trained under (Sword Queen). Loves cute magic beasts, even though they don't love her.
Nari
Unicorn
Life
Relisa Sephior's familiar.
Naslunal
Mythic (Zaratan)
An enormous sea turtle whose shell forms the base of a floating island full of rare plants and magic beasts.
[Naslunal's Agent]
Human
Lives on Naslunal's shell and controls who is allowed to come on and harvest materials.
Nelias [ ]
Human
Kalion Obarin's secretary.
Nelina Erish
Human
Journeyman enchanter and enchanting professor. Daughter of an earl. Thenio Iterune's scribing teacher at the Royal Academy of Magic.
Nilo [ ]
Human
Kleyo Iterune's classmate.
Obby(Obsidian)
Plushie (Chicken)
—
Iggy's second favorite toy. A black plush chicken with numerous enchantments. Made by Ariom Denifor and Toflyn Ayerin.
Otker Perinith
Human
Head of the Perinith Workshop. Lunon and Siora Iterune's employer.
Peqeran
Mythic?
One of the "nobles" mentioned by the phoenix in chapter 37. One of the two figures that appeared in Ki'shiu's dream in chapter 52.
[Phoenix]
Mythic
A mythic beast who hasn't been seen by humans for several centuries. Seems to have a close relationship with Ki'shiu.
Relisa Sephior
Human
Grandmaster alchemist. Married to Focilo Sephior.
Rimeus Telven
Human
Life
Doctor working for the Royal Guard. Head of the medical team assisting with the explosive enchantment analysis.
Riomel Denifor(Emberhawk)
Human
Firestorm
Ariom Denifor's father. Bero Denifor's older brother. A sixth-rank battlemage on the First Squad of the Central Division of the Kafron Magic Corps. Trained under Kalion Obarin and Jasel Yaron.
Riven
Prismatic Hydra
Mental
(Hydra)'s familiar.
Saklo Renquis
Human
Coordinator for the Merioc Research Alliance.
Sano
Unicorn
Life
Focilo Sephior's familiar.
Sayomi [ ]
Human
Bero Denifor's youngest daughter.
Seyli Ayerin
Human
Life
Ariom Denifor's second cousin. Student at the Royal Academy of Magic. Phoenix child. A shy girl who uses fashion and formal manners as a mask to hide her social anxiety. Loves dragons and wants to become a magic beast veterinarian.
Sholi Nidom
Human
Araela Valin's apprentice. Works at the Wizard Association's Research Institute.
Siora Iterune
Human
Clay
Thenio Iterune's mother. Works at the Perinith Workshop as an alchemy assistant.
Suliya [ ]
Human
Water
Thenio Iterune's aunt. Siora Iterune's older sister. Married to the third son of a baron.
Sundog
Dragon (Azure Flare)
Flare
Toflyn Ayerin's familiar.
Tamon
Imp (Fire)
Fire
Kalion Obarin's familiar. He formed a contract with Kalion in order to stabilize his magic and save his life.
Tava
Dragon (Atavistic Violet Flare)
Flare
Seyli Ayerin's pre-familiar. An orchid-colored dragon with a motherly nature. Her parents rejected her egg, so she was hatched in an incubator and hand-raised by Seyli.
Teselin Rhimari
Human
Necromancy professor. Head of the Royal Academy's Magic Affinity Research Lab.
Thenio Iterune
Human
Chaos
The main character. Ariom Denifor's assistant. A boy with a mysterious, unstable magic affinity.
Tilia Denifor
Human
Ariom Denifor's aunt. Married to Bero Denifor. Raised Ariom after his mother died.
Toflyn Ayerin
Human
Seyli Ayerin's older brother. Ariom Denifor's second cousin and former apprentice. Journeyman enchanter and magic zoologist. Designs enchanted products for magic beasts.
Vielle
[Wolf-like Magic Beast]
Kymia Larinos' familiar. A small white and brown wolf.
Yohlom Idarin
Human?
Life?
A mysterious and powerful necromancer. Also known as the Guardian of the First Rift and the Last True Necromancer. Controls a large group of enchanted skeletons known as the Guardian's White Army. Known for his hatred of demons.
Ziryi [ ](Darkbolt)
Human
Lightning
A sixth-rank battlemage who's a member of Kafron's Magic Corps but usually works with the Royal Guard. Specializes in stealth operations and trap enchantments.