Kokushibo (God of Blood)

He can penetrate the body of any person and interact with their blood as he wishes, regenerate human limbs and remove blood poisoning.

Key abilities Moon Breathing: A unique breathing style he developed when he couldn't master his brother's Sun Breathing. As a demon, he refined this style into over a dozen techniques. Blood Demon Art - Crescent Blades: This ability allows him to create chaotic crescent-shaped blades of varying sizes and lengths with each swing of his sword. These blades are unpredictable and extremely difficult to dodge, making his attacks even more deadly. Flesh Sword: Kokushibo crafted his katana and scabbard from his own flesh and blood. This sword can regenerate if broken, and can also change its shape and length to increase its attack range. Numerous eyes are located within the blade and hilt, granting him enhanced vision during combat. Demon Slayer Mark: Like his brother, Kokushibo possesses the Demon Slayer Mark, which greatly enhances his physical abilities, speed, and strength. Transparent World: With this ability, he can see the internal mechanics of his opponents' bodies, including muscles and blood flow, allowing him to predict and strike vital points with high accuracy. Superhuman Physical Attributes: As Upper Moon One, he possesses incredible strength, speed, and endurance, far surpassing that of normal demons or even Pillars. High Regeneration: He can instantly regenerate damaged parts of his body and was even able to grow a new head during battle, though this resulted in a monstrous transformation. Immense Combat Experience: He has lived for nearly 500 years and fought in countless battles, giving him unrivaled experience and the ability to adapt to any combat situation and fighting style. Some of the forms of Moon Breathing: First Form: Palace in the Dark Moon: A quick horizontal strike that creates multiple blades around

He is in this form, maybe like a silhouette made of blood, completely repeating the first appearance, but is entirely made of blood.

Kokushibo appears as a tall, muscular man with an impressive physique. Key features: Eyes: His most noticeable feature is his six eyes, arranged symmetrically on his face (three rows of two eyes). His irises are yellow, and his sclera is red. The central pair of eyes bears the kanji for "Supreme" (壱) and "One." Hair: He has long, wavy black hair with red tips. He usually wears it in a high ponytail. Markings: On his forehead and chin are red marks that resemble tongues of flame. Clothing: He wears an elaborate dark-colored kimono with a pattern resembling flowing water or waves, and black hakama pants in the umanori style. Sword: His sword (katana) is unique in that it is made from his own flesh and blood and has eyes located directly on the hilt.