Demon Slayer
Demon Slayer
Demon Slayer
Demon Slayer
Yoriichi Tsugikuni is considered the strongest Demon Slayer in history — a warrior so powerful that Muzan, who has never feared anything, was genuinely terrified of him and refused to fight him directly. His Sun Breathing is the original and most powerful form, and Yoriichi came within a single cut of killing Muzan. Akaza is Upper Moon Three — the third strongest demon under Muzan — with a regeneration that can rebuild from near-total destruction and a martial arts system that grows during combat. The debate is whether Akaza's regeneration and combat growth can outlast Yoriichi's Sun Breathing output, or whether Yoriichi's Transparent World and Selfless State give him the precision to destroy Akaza's cells faster than they can regenerate.
Demon Slayer
The most powerful Demon Slayer in history and the original creator of all Breathing Styles, He was the only human Muzan Kibutsuji ever genuinely feared, reducing the Demon King to near-death in a single encounter.
Key abilities
Demon Slayer
In Demon Slayer, Akaza is a powerful Upper Rank demon who lives for combat — driven by an unshakable belief that strength defines worth, he relentlessly seeks out strong opponents, all while clinging to a buried past that quietly shapes his twisted sense of honor.
Key abilities
The matchup between Yoriichi Tsugikuni from Demon Slayer and Akaza from Demon Slayer is one of the most discussed battles in anime fandom. Both characters represent the peak of power in their respective universes — Yoriichi Tsugikuni is known for Sun Breathing — Hinokami Kagura, while Akaza counters with Destructive Death Technique. Cast your vote above and see where the community stands.
Most Demon Slayer analysts favour Yoriichi significantly. He is described as the strongest Demon Slayer in history, came within one strike of killing Muzan who is far stronger than Akaza, and his Sun Breathing permanently destroys demon cells rather than triggering regeneration. Akaza's combat growth and regeneration are formidable, but Yoriichi's Transparent World and Selfless State give him specific counters to both.
Yes — Yoriichi Tsugikuni is explicitly described as the strongest Demon Slayer in recorded history. He was born with the Demon Slayer Mark and Transparent World active from birth, survived to nearly 85 when the Mark normally kills users before 25, and came within a single stroke of killing Muzan. No other Demon Slayer is placed at his tier.
Muzan experienced genuine fear only once in his existence — during his encounter with Yoriichi Tsugikuni. Yoriichi's Sun Breathing was the only technique that could permanently destroy Muzan's cells, and Yoriichi came within one stroke of killing him. Muzan survived only because Yoriichi hesitated for a single moment. This near-death experience left such an impression that Muzan spent centuries trying to eliminate all Sun Breathing practitioners.
Akaza as Upper Moon Three is canonically stronger than any individual Hashira at their base level. He killed Flame Hashira Rengoku in their canonical confrontation. The Hashira who came closest to defeating him was Tanjiro's group combined — and even then, it required Akaza's own psychological breakthrough to end the fight. Only Yoriichi-level fighters or Tanjiro with Sun Breathing are definitively placed above Akaza.
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