Akaza (demon-slaying blade)

Akaza most often turns into a demon through a bite on the neck, sometimes he splashes his blood and with this turns into a demon. He has the blood of Muzan, their demon king, and everyone Akaza turns into demons is like him.

Akaza is a strong, stubborn, and impulsive demon who loves to fight, especially hunting strong demons or Pillars. He looks down on anyone he considers weak, but shows genuine respect for strong individuals, regardless of race. He is also easily angered and irritated, especially by Douma's whims and weak people. Despite his passion for fighting and stubbornness, Akaza knows when to retreat.

Akaza appears as a young man with an athletic build. After his transformation into a demon, his skin turned white and he gained many blue stripes on his body, reminiscent of the tattoos he had as a human. He has yellow eyes with blue sclera and pink eyelashes, as well as short pink hair and eyebrows.