Akaza is one of Muzan's most powerful demons and a member of the Upper Moon. Despite his monstrous nature, Akaza retains fragments of his human emotions, such as respect for strong opponents and disdain for weak ones.

His tragic backstory reveals a man driven by love and loss, ultimately succumbing to despair. Akaza's battles with Kyojuro Rengoku and Tanjiro highlight themes of strength, honor, and redemption.