Choi Changsik (창식, Chang-sik; "Changsik") is a red dragon who is also Judge O's charyeok. She was killed after getting decapitated by one of Sang Manjin's sword, but was later reborn as a hatchling. Changsik is later revealed to be a female and is also a polymorph like Jang Hosik.


Changsik is a large red-colored dragon. Her size is close to that of a tall multistory building. When reborn, Changsik comes back as a small circle-shaped red dragon. As of recent chapters, her size is big enough to cover a large part of Nox's cave.

In her polymorphic form, Changsik appears as a slender young woman with long red pig tails. She is missing one of her fangs (presumably it's the fang that Judge O used as Dragon Slayer Sword).


Due to the time she spent as his charyeok, Changsik is close to Judge O and protective of him, and vice versa. She loves gold, and can be seen almost crying after doing a job and not being given one.


Red Dragon is O's charyeok and provides him with inhuman abilities. She is a fire Dragon and materializes after Judge O removes his limiter. If Changsik is killed, the dragon can be reborn a hatchling but the process takes at least two months.

Pyrokinesis: He gives O the ability to create and manipulate fire at will.

Regeneration: She has a very high regenerative ability and quickly healed her body after Saturn tried to destroy her from inside.

Polymorph: Like Hosik, she has the ability to transform into a humanoid form.

Dragon Techniques

Breath Attack: As a dragon, Changsik can unleash a powerful breath attack.


  • Her love for gold is both a reference to the European dragon myth that dragons guard gold treasures and J.R.R. Tolkien's dragons that love gold treasures.

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