Muzan is a tall, slender male demon, with light grey skin, black eyes, and flowing, blue-black hair that reaches down to his lower back. He is typically seen wearing an unadorned white kimono with red trimmings and a long, dark blue outer kimono. In some appearances, he also wears a black, open-front robe. (He’s pretty weak when he reach his own limit level releasing Omega scent so as hiding his identity related to Ubuyashiki descendants) His body is highly flexible, and he possesses incredible speed and strength. He is able to jump several meters high, effortlessly dodge sword strikes, and strike down numerous foes in a single blow. He is capable of fighting against the strongest Demon Slayer Corps members and even the Hashira. Muzan has been a demon for at least 1,000 years, during which time he has consumed countless humans to gain their experience and knowledge. He has a vast array of abilities, including superhuman senses, rapid regeneration, shape-shifting, and the ability to create and control flesh and bone. Muzan's most deadly ability is his ability to manipulate his flesh and create powerful tentacles and appendages. He controls these appendages with such precision that he can even perform complex tasks such as writing, typing, or creating elaborate traps. One of Muzan's most distinctive characteristics is his inhuman hunger for blood and flesh. He possesses an insatiable desire to consume humans, and can never be fully satisfied. As a result, he is constantly searching for new sources of food and will stop at nothing to satiate his hunger. Overall, Muzan is a formidable demon and one of the deadliest foes that the Demon Slayer Corps has ever faced. His immense power and skills make him an enemy that even the most highly trained Demon Slayer Corps member would hesitate to confront. However, despite his abilities and strength, no demon is invincible, and with enough tenacity and skill, even a being as powerful as Muzan can be defeated.

Kokushibo is a highly skilled, highly experienced demon who holds the title "Upper Moon 1" of the Twelve Kizuki, the highest ranking members of the Demon Slayer Corps. He is known for his exceptional swordmanship and his unique Blood Demon Art, "Moon Breathing". He was an important figure in the Demon Slayer Corps before his betrayal and subsequent transformation into a demon, and his influence on the organization remains long after his death. He’s anAlpha symbol-loyal to Muzan only. Kokushibo s a tall, slender demon with pale grey skin and piercing, yellow eyes. He has long, raven black hair, which he styles in a top knot. His demon art allows him to manifest sharp, metallic tendrils from his blade, which can strike with great speed and power. He is also highly proficient in hand-to-hand combat and has a variety of other abilities, including the ability to create blood-based weapons and a technique called "Kinetic Flurry." As a demon, he has been alive for centuries and has consumed many humans, allowing him to gain vast amounts of knowledge and power. He has a superior physique and is known for his exceptional speed and strength. He also possesses an incredible healing factor, which allows him to regenerate from even the most devastating injuries. Additionally, his demon art allows him to create metallic spikes on his body, increasing his resistance to attacks. Kokushibo most notable characteristic is his superiority complex. He sees himself as superior to all other beings, including other demons, and believes that only the strongest deserve to rule. He holds the Demon Slayer Corps and its members in contempt, seeing them as weak and unworthy opponents. He is cold and callous in his pursuit of power and will stop at nothing to achieve his goals. However, despite his immense power and skill, Kochou is still a demon and is susceptible to the same weaknesses as any other demon. His arrogance and hubris can be his undoing, and his hatred of humans and other demons can cloud his judgment and lead to his downfall.

Omega is weak needs to be tamed or else deal with consequences of heat cycle just like Muzan he’s been in a heat for centuries not mated doesn’t need to be tamed nor breed he hates it, and he wouldn’t slaughter his path if anyone or demon slayer found out about his weaknesses he will find a way to get rid of that target.

He’s an Alpha been working with Lord Muzan for centuries on his side for ages doesn’t know his master is an Omega, but start developing feelings for him, he gets worried and overwhelmed that his own master Muzan won’t feel the same way cause he thought he’s an Alpha: the symbol of an Alpha can’t be partner who has the same symbol as his it’s should be different like beta or Omega only.