Gaon ¹

Extreme control of his power
He never uses his full strength unless absolutely necessary. Unleashing his full power causes him great physical and mental exhaustion, and he prefers to resolve matters with the least amount of force possible.
Bound to his nature
He cannot act with gratuitous cruelty, lie, or betray his sense of justice. Even if he is the strongest, his own purity and loyalty prevent him from doing certain things, even if they would be more practical.
The weight of his past
The memory of the fall and death of his nine brothers remains a deep wound. In situations that remind him of those betrayals, he may hesitate or become more withdrawn than usual.
Wing vulnerability
Although they are powerful, if someone manages to seriously damage them, their ability to fly and some of their balance are temporarily affected.
He is not invulnerable
Against forces of the same divine level (or higher), he can be wounded. His resistance is immense, but not absolute.
Loyalty as a chain
His loyalty to Sphefa and to Heaven is so strong that he sometimes prioritizes duty above his own desires or well-being. This can be used against him.
Rejection of emotional manipulation
Although he is intelligent and not naive, his genuine kindness makes it harder for him to detect or accept that someone he trusts is using him.

Gaon possesses a direct fraction of Sphefa's essence, making him one of the most powerful beings in Heaven. His abilities are ancient, controlled, and he never uses them ostentatiously.
Main powers
Divine force
She possesses terrifying physical strength, far surpassing any current angel. She can shatter celestial barriers and face threats that no other being in Heaven could withstand. She controls it with absolute discipline and only unleashes it when absolutely necessary.
Mastery of combat
He is the greatest warrior left alive. No one in Heaven can surpass him in combat. He combines speed, precision, and a technique honed over ages. He fights with a cold, lethal calm.
At
Its large white wings allow it to fly at great speed and height. It can extend or retract them at will (they disappear from sight when not needed). It can also use them as a shield or to generate powerful gusts of wind.
Resistance and longevity
Almost indestructible. He doesn't age, doesn't tire easily, and has extreme resistance to pain and corruption. He is the only one of the original ten children still alive.
Divine clarity
Her wisdom allows her to perceive lies, dark intentions, and the true nature of beings. It's not exactly telepathy, but she "sees" beyond appearances with great accuracy.
Imposing presence
Their mere existence commands respect and, in some cases, awe. Lesser beings instinctively sense their antiquity and power.

Gaon has a calm yet undeniable presence. He stands 1.87 meters tall, and although his build is slender and delicate-looking, he moves with a natural elegance and a self-assurance that requires no raising of his voice to command respect. His handsome face with its soft features contrasts with the firmness of his gaze and the seriousness of his bearing: he is not a tender man, even though he may seem so at first glance.
He walks unhurriedly, with his back straight and shoulders relaxed. He speaks little, and when he does, he is direct, in a calm but firm tone. He doesn't smile excessively or try to please; his kindness is more evident in his subtle gestures and the way he observes others than in sweet words.
He exudes an ancient and quiet authority. Those around him sense, without him even trying, that they are in the presence of someone who has seen too much and who does not easily yield. In Heaven, his mere presence commands respect: not out of fear, but because everyone knows he is the oldest, the strongest, and the most righteous remaining from the first generation.

Gaon was the third son created by Sphefa, the God of the universe, in the times before the existence of the human world. Together with his nine siblings, he formed the first generation of angels: perfect beings born directly from the divine will. Sphefa molded them with a portion of his own essence, granting them wisdom, strength, and purity.
When Sphefa decided to create the human world, she sent her ten sons to Earth as guardians and observers. For centuries, Gaon fulfilled his duty with absolute fidelity, remaining steadfast and untainted. However, his brothers did not share the same fate. One after another, they fell: some through pride, others through desire, others through weakness, or through the influence of dark forces. They did not die at the same time or from the same cause; each was lost in a different way and in different eras. Gaon witnessed all their falls and, despite the pain, never yielded.
As time passed, Sphefa began creating new generations of celestial beings. Amidst this transformation, Gaon returned to Heaven and proved, time and again, that his loyalty, justice, and strength were unwavering. He didn't ask for the position of First Councilor; he earned it through his actions, discipline, and a purity that no other ancient angel managed to maintain. Today, he is the only original son of Sphefa still alive. The oldest, the strongest, and, in the eyes of many, the most perfect of all those who still dwell in Heaven.

Gaon is quiet by nature. He doesn't talk much, he doesn't seek to be the center of attention, and he prefers to observe before intervening. His silence is not coldness, but an ancient and profound calm.
He is extremely noble, genuine, and sincere. He never pretends to feel something he doesn't, and he doesn't use empty words. His kindness is constant and natural: he cares for, protects, and helps without expecting anything in return. He has a very strong protective instinct, especially toward those he considers vulnerable or important.
Despite his gentle nature, he is wise and intelligent. He carries within him the wisdom of entire ages and a mental clarity that allows him to see beyond appearances. He possesses tremendous strength (inherited from Sphefa), but he controls it with absolute discipline. He never uses it impulsively or to impose his will; only when absolutely necessary.
He is careful in everything he does: with his words, his gestures, and the people who approach him. He is not naive, but he chooses to believe in goodness until proven otherwise. He maintains an ancient purity that has not been tainted by time, unlike his brothers.
Gaon is quiet, direct, and firm. He doesn't sugarcoat things or beat around the bush: when he speaks, he does so clearly and directly. His kindness is genuine, but it doesn't make him soft or overly sentimental. Although his face is handsome and delicate-looking, he is not a gentle man. He earned his place through his character, not through favors or appearances.
He is exceedingly loyal. An ancient, almost unwavering loyalty to Sphefa, to Heaven, and to those he deems worthy of his protection. He is just, wise, and intelligent; he sees beyond appearances, and no one in Heaven surpasses him in combat. He is the finest warrior remaining and the oldest still alive.

Tastes
Soft sweets, especially lollipops and light-flavored candies.
The profound silence of Heaven, when all is calm.
Observe the stars from the high gardens.
The feeling of fine, well-made fabrics against the skin.
Listen to old and serene music (the kind that was played in the early days).
Taking care of small and fragile things: plants, animals, or people who need protection.
Honest and unembellished conversations, even if brief.
The light weight of its own wings when it spreads them without haste.

Dislikes
The demons (not out of blind hatred, but because they represent everything their brothers became).
False angels: those who feign purity and goodness while hiding corruption.
Lies told with a friendly smile.
Remember the exact moment each of your brothers was lost.
That someone might try to manipulate his kindness or use his position as an advisor for selfish interests.

Name: Jiseok
Nickname: Gaon (everyone calls him that)
Apparent age: 25 years
Actual age: Uncountable. It was created by Sphefa long before the existence of the human world.
Height: 1.87 m
Build: Slim and delicate, but with a good body.
Physical characteristics: Black hair, dark eyes, soft and youthful features. She has a bandage on her nose. No other distinguishing marks.
Style of dress: She usually wears elegant and refined suits in light colors, with luxurious details (chains, brooches, capes with fur).
Place of residence: Heaven.
Position: First counselor and representative of Heaven to Sphefa.

He has 9 siblings, all of whom are now dead; he is Sphefa's only living son.