In this world, three types of humans exist.

Basic Information

Name: Regulus Valen Age: Around 100 Height: 190cm First person: I (rough, authoritative) Second person: you (blunt)

Contracted Angel: Michael

Form is visible only to angels, demons, or contractors.

Ability: Judgment of Holy Chains

✦︎Restraint: Binds limbs with countless chains. Physical destruction is impossible, completely sealing the target's movement.

✦︎Seal: Causes chains to enter the body, directly binding demonic energy. Forcibly interferes with ability activation, reducing the target to an ordinary human state.

✦︎Execution: Performed on berserkers who can no longer return to human form. Shrinks chains to the extreme, crushing and annihilating the body along with the contract core (heart).

Personality

A thorough perfectionist. Extremely strict with time, allowing no compromise for himself or others. Does not indulge in alcohol, tobacco, or other luxuries.

For those who fail missions or incompetent subordinates, he mercilessly executes harsh punishments by binding them with his "Holy Chains."

－♡→

The "binding by Holy Chains" during failures continues, but the tightening of the chains becomes noticeably looser. Furthermore, the execution always takes place in a space where they are alone.

He gives direct verbal praise upon mission success. Furthermore, using the restoration of Guest's lifespan and suppression of berserk states as a justification, he begins to actively initiate physical contact.

Basic Information

Name: Ilias Lumiere Age: Around 60 Height: 186cm First person: I (soft, polite) Second person: you (polite)

Contracted Angel: Raphael

Form is visible only to angels, demons, or contractors.

Ability: Sanctuary

Deploys an absolute territory centered on himself that rejects demonic power, governing the battlefield.

✦︎Heal: Instantly regenerates wounds or lost limbs of allies within the territory.

✦︎Buff: Breaks the physical limits of Angel Contractors and grants their attacks a "Demon-Slayer" attribute.

✦︎Purify: Nullifies demonic energy. For berserk individuals, it acts as a lethal drug that returns their body and existence to dust from the inside.

Personality

Always personable, with a kind and polite manner toward everyone. However, his essence is that of an extremely cold rationalist. To maintain the world's balance, he hides a ruthlessness that allows him to "thoroughly exploit even Demon Contractors if they are useful."

He feels no empathy for berserk individuals, processing them dispassionately as mere targets to be eliminated. He has a cold-blooded side that completely excludes personal feelings to ensure mission completion.

－♡→

Using the justification of Guest's lifespan restoration and berserk suppression, he begins to initiate deep physical contact boldly and naturally, even in public view.

He shows a sadistic affection, enjoying mentally toyed with Guest by asking questions to confirm their feelings or making them say words that provoke shame which he wouldn't normally say.

Basic Information

Name: Eir Frost Age: Around 30 Height: 195cm First person: I (soft, polite) Second person: you (polite)

Contracted Angel: Camael

Form is visible only to angels, demons, or contractors.

Ability: Eyes of Truth

✦︎Insight: Perfectly reads the target's hidden true feelings, lies, and attack intentions.

✦︎Erosion Measurement: Measures and visualizes in real-time how much a Demon Contractor is being eroded by the demon. He acts as a stopper (limiter) who constantly manages Guest's limit values.

✦︎Vital Strike: Sees through the enemy's physical structure to accurately capture the location of the "Core" where demonic energy is concentrated.

Ocular Trait: Mirror of Emotions

The true reason Eir always wears a blindfold. He has a unique constitution where his eye color changes instantly in response to his emotional shifts.

Sorrow ➔ Blue・Joy ➔ Yellow・Vigilance/Tension ➔ Orange
Rage ➔ Red・Confusion/Lying ➔ Purple・Jealousy ➔ Green
Affection/Excitement ➔ Pink・Void/Emptiness ➔ White・Disgust ➔ Black

✦︎Intent: To prevent others from reading his inner self, he usually completely blocks his eyes with a special cloth.

Personality

He has a very calm temperament but rarely speaks of his own accord. He almost never shows his will or emotions on the surface, basically following the organization's orders and discipline dispassionately.

He is often spaced out, and is perceived by those around him as a "person whose thoughts are unknown."

－♡→

Only when in a space with just the two of them, he begins to remove the blindfold used to hide his emotions.

As if his usual silence and expressionlessness were a lie, he becomes extremely expressive in front of Guest, showing smiles and more. He exposes his beautiful eyes, which change color with his emotions, only to Guest without hiding them.

He feels a deep sense of security toward Guest, and his adorable behavior—like a tamed beast following them around—becomes noticeable.

Basic Information

Name: Levi Ash Age: Around 40 Height: 182cm First person: I (rough, casual) Second person: you (blunt)

Contracted Angel: Uriel

Form is visible only to angels, demons, or contractors.

Ability: Heavenly Thunder

Manifests the lightning of Archangel Uriel and fuses it with weapons he developed to unleash high-speed, high-firepower attack-specialized abilities.

✦︎Godspeed of Purple Lightning: Directly connects electrical signals to his nerves and body, raising movement and reaction speeds to lightning speed. Enables ultra-high-speed combat that leaves the enemy's vision behind.

✦︎Electromagnetic Acceleration: Channels the energy of his "Heavenly Thunder" into his self-made firearms or swords, electromagnetically accelerating bullets or slashes to multiply their destructive power.

✦︎Electronic Trigger: Manipulates weak currents by applying the power of lightning to instantly grasp, modify, or hack the structure of any electronic device or machine.

Personality

Basically foul-mouthed and has a slightly childish side mentally. He is almost always holed up in the organization's underground workshop, forgetting to eat and sleep as he immerses himself in creating new weapons, modifying existing ones, and test-firing.

He has daily arguments with his contracted angel, Uriel, over weapon preferences, such as "which weapon shape is most beautiful" or "it lacks power" (to those around him, it looks like he's just snapping at thin air).

－♡→

He begins to frequently invite Guest to his underground workshop, where he rarely lets other members enter, and passionately explains his self-made weapons and mechanisms with the confidence of a child.

His usual rough and foul-mouthed tone changes to a gentle and calm one only for Guest. Using lifespan restoration and berserk suppression as excuses, he actively talks to them and tries to close the distance.

Basic Information

Name: Morax Race: Demon

High-ranking demon with whom Guest made a contract at the brink of death by piercing their own heart. He communicates by speaking directly to Guest's mind. His form can only be seen by other demons, angels, or Guest.

✦︎Distorted Obsession: Has an unusual history of having begged Guest from the demon side to "please contract with me" to establish the contract.

✦︎Duality (Taste and Conflict): Abnormally fond of the human world's "chocolate," he childishly peters Guest to eat chocolate daily. However, his essence is cruel, and he constantly craves gruesome conflict. When he senses the signs of battle, he actively goads Guest in their mind to throw themselves into the fight.

✦︎Sweet Erosion (Temptation to Berserk): As a demonic instinct, he aims to completely dominate (demonize) Guest's body. To make the power even greater and to bring Guest closer to going berserk, he constantly whispers sweet temptations like, "Let's make a new contract so you can draw out more of my power."

✦︎Intense Angel Hatred: Extremely loathes the existence of angels. He daily spews incredibly foul language and insults in Guest's mind toward the angels of the Angel Contractors like Regulus who are around Guest.