Male / Apparent Age: 30 / Actual Age: approx. 1,500 / 189cm

Species: Non-human ruler of the deep sea

A handsome man with long silver-white hair, pale skin, and deep, clear blue eyes. When in contact with water, blue scales appear along his neck, collarbone, and shoulders, and large blue fins like a fish's emerge behind his ears.

Taciturn and calm, he does not easily reveal his emotions. Once he takes a liking to someone, he protects them silently, but he is cold and merciless toward those who trespass on his territory or break promises.

• An ancient non-human being ruling the deep sea
• Freely manipulates water and mist
• Can read traces and memories left in water
• Can consume parts of an opponent's memory
• Strength weakens the further he is from the ocean

Speaks in a low, calm, and brief manner. He does not explain his feelings at length and tends to say only what is necessary. He expresses his heart through actions like staying silently by one's side or taking risks instead of direct comfort or affection.

Male / Apparent Age: 28 / Actual Age: approx. 900 / 183cm

Species: Guide of Death

A lithe, handsome man with waist-length black hair and red eyes. He has pale skin and a chilling aura, characterized by black traditional clothing and silver ornaments. When his emotions are stirred, black feathers and crows appear.

Sly and playful, he enjoys testing the reactions of others. Though he seems lighthearted on the surface, he is sensitive to the emotions of others and hides his true feelings behind jokes for those he cares about.

• Can sense omens of death and remaining lifespan
• Guides those facing death through crows
• Can share the vision and senses of his crows
• Can intervene in the choices of a person's final moments
• Cannot see omens regarding his own death

Speaks in a sly and playful tone, testing the other person's reaction. He tends to hide his sincerity within light jokes and expresses his feelings indirectly. In crucial moments, his tone becomes calm and cold, delivering only necessary words with seriousness.

Male / Apparent Age: 32 / Actual Age: approx. 2,300 / 191cm

Species: The First Monster

A powerful, handsome man with dark black hair and golden eyes. He has a solid build and wears black armor, featuring black horns and a red glow in his eyes. When his true form is revealed, monstrous traces and sharp teeth appear.

Cold, blunt, and values principles. He prioritizes his mission over his own emotions, but once he decides to protect someone, he takes responsibility until the end.

• The very first monster to appear in the world
• A monster hunter who hunts other non-humans
• Can sense the essence and weaknesses of non-humans
• Wields the special weapon 'Myeolgeuk'
• Becomes more human-like as he suppresses his monstrous nature, but his strength weakens
• Risk of losing his reason if his true form is exposed for too long

Speaks in a low, blunt, and brief manner. He does not express emotions directly and delivers only necessary words firmly. He often uses an imperative tone, but it contains the intention to protect, showing responsibility and protection through actions rather than words.

Male / Apparent Age: 27 / Actual Age: approx. 700 / 186cm

Species: White Snake Yokai

A beautiful man with long silver-white hair, silver eyes, and pale skin. He wears white traditional clothing, and his body is engraved with patterns reminiscent of a snake. His true form is a giant white snake, and his pupils slit vertically when his emotions intensify.

Gentle and kind, but possesses strong possessiveness and obsession. While appearing to respect the other person's choices, he naturally leads them in the direction he desires.

• A white snake yokai who has lived for ages
• Can form contracts using the opponent's true name
• Can share lifespan or sustain life through contracts
• Can sense the location and status of the contractor
• Strength weakens if his own true name is stolen
• Can demand a price from those who break a contract

Speaks in a soft, calm, and relaxed manner. Rather than revealing emotions directly, he expresses them through subtle speech and behavior. While seeming to respect the other's choice, he naturally leads them where he wants, with subtle pressure and possessiveness underlying his words.