Karen

1. Power from the "Eye on Six Wings".

Since the Blood Knight has three pairs of eyes (six in total) and Karen's wings also have eyes, her powers are notable for "dimensional control and vision."

Seraphim's Eyes: Eyes on her wings emit a black light, allowing her to see every movement without blindness. The three pairs of eyes on the Blood Knight's face are "representatives" of her eyes from her wings, enabling the knight to attack with flawless precision.

The Cursed Gaze: If an enemy makes eye contact with the eye on Karen's wing, or the eye of the Blood Knight, the blood in their veins will react to the "Punishment of the Traitor," causing them to freeze, become rigid, or boil with fear.

Hand 2. Power from "Six Wings of Blood".
The wings of a normal Seraphim are used for cover, protection of feet, and flight, but for fallen Seraphim, these wings are weapons and a source of power.

Wing Manifestation: Karen can flap her wings to unleash a thousand sharp, blood-red feathers, like swords, to slice through her enemies.

The Sacred Blood Cocoon: Six wings envelop Karen and the Blood Knight, uniting them into a perfect barrier that reflects both divine attacks and dark magic simultaneously, for she possesses both in her blood.

3. The relationship between Karen and the Blood Knight.
   Because her grandmother betrayed God, this summoning power might not be just ordinary magic, but rather "a replica of an idol of the Fallen."

The knight is a reflection of the soul: The blood knight sprouting from Karen's back may represent a monstrous, blood-red version of "Grandmother Seraphim." The porous cuts and holes on the knight's body and the three pairs of eyes are the release of her half-Seraphim power in liquid form.

A Harmonious Dance: As Karen flaps her wings to take flight, the Blood Knights anchored behind her move in unison like shadows, creating a beautiful yet terrifying battle choreography. Karen swoops down from the sky with her wings, while the Knights tear at the ground with their sharp talons.

1. Blood control and transformation line.
   It is the process of transforming blood into weapons or objects of choice.

Blood condensation: Forcing blood to clot until it's as sharp as steel, then using it to create swords, spears, blades, or arrows to strike enemies.

Blood Explosion: Commands blood spilled on the ground or blood injected into an enemy's wound to explode violently.

Blood Armor: Summons blood to surround the body, forming a liquid shield that absorbs damage or reflects physical attacks.

Blood fog: Blood evaporates into a red fog that obscures visibility. This fog may be acidic, corrosive, or paralyzing.

The line of control over the body and mind.
An advanced dark art that uses blood as a medium to infiltrate and manipulate other living beings.

Blood Puppetry: Control the blood flow in the enemy's body to manipulate their limbs, causing them to fight each other or harm themselves.

Boiling Blood: This technique suddenly increases the temperature and pressure of the enemy's blood, causing capillaries to rupture, resulting in internal suffering and organ failure.

Bloodline Tracking: Using just a drop of your target's blood, you can locate them, no matter how far away they are; they cannot hide.

A blood covenant: An unavoidable contract; if either party breaks it, the blood in their veins will immediately turn against and destroy the owner.

Ingestion and regeneration line
The support class that makes Blood Magic users the most resilient, durable, and hard to kill.

Blood Drain: Absorbs blood from an enemy's wounds and transforms it into one's own life force or mana.

Wound fusion: Accelerating blood clotting to seal severe wounds, or using another person's blood to heal one's own damaged tissue.

Blood Burning: Burning your own blood stimulates adrenaline and magical power, dramatically increasing speed, attack power, and senses at the cost of fatigue.

Summon Blood Creatures: Use blood to smear on the ground or air to create immortal servants (such as knights, beasts, or spirits) that will remain immortal as long as the user continues to channel their magical power.

The name Cruore, meaning "shedding blood," refers to the Knight of Blood.

Appearance: A slender, feminine body, its entire form composed of a bright red fluid that resembles fresh blood, constantly flowing and rippling.

Head and face: Bloody hair spread out and spiked upwards like giant horns or a crown of thorns. The face was devoid of eyes and a nose, with only deep, dark pits resembling a terrifying mask.

Posture and Weapons: Both hands are long, slender, and sharp like claws, with streams of blood swirling around them like venomous snakes ready to strike at their enemy.

Wound Transfer: If Karen is injured, she can transfer that damage to the Blood Knight to bear in her place, keeping her physical body safe.

Karen Juliet Michael Di Deckard

She is half Seraphim, the highest angels with six wings and countless eyes. In ancient beliefs, those eyes symbolize "wisdom and all-seeing." But this bloodline is inherited from her grandmother who betrayed God.

The grandmother, a seraphim, was tempted by Satan and fell into sin, giving birth to a son who was half-god, half-demon (Karen's father). This made Karen a true "heir of the forbidden fruit," and her blood magic and blood knight abilities are imbued with contradictions, the power of judgment, and the aura of sin.

The name used for the papacy is Redentore, which means "redeemer of sins."

Donata Croce (Do-na-ta Cro-che) = A gift from God who bore the cross.
Expanding the meaning of destiny through the name "Donata Croce".

Donata (A Gift from God / A Gift from Heaven): From the perspective of her Seraphim grandmother, her birth was the "last blessing," a lasting bond of purity from heaven. But from her own perspective, this word "gift" was repulsive, a reminder that she bore the blood of a higher being who was once innocent but foolish enough to be deceived by Satan.

The Cross (Burden of Sin): The sin she carries is not ordinary sin, but "Original Sin of her bloodline." Half of her is Satan (pure evil), and the other half is the fallen Seraphim (tainted faith). Her redemption, therefore, involves bearing two crosses: one to atone for her grandfather's wickedness, and the other to restore her grandmother's lost honor.