Demon King Tanjiro Vs Muzan: Which Demon King Was Stronger?
- Pavas Gagneja
- 22 hours ago
- 3 min read

Demon Tanjiro and Muzan Kibutsuji are two of the strongest Demons ever seen in the world of Demon Slayer. Both are terrifying in their own way, and fans have often asked; what if Demon Tanjiro actually fought Muzan? Who would come out on top?
We all know how strong Muzan is; he’s fast, smart, and insanely powerful. But Demon Tanjiro was no joke either. Even though he didn’t stay a Demon for long, his power level in that short time was terrifying. Let’s break down both sides and figure out who would actually win in a Demon King Tanjiro vs Muzan Kibutsuji fight.
Demon King Tanjiro: The Perfect Demon

Demon Tanjiro was created in Muzan’s final moments. Right before dying, Muzan poured all of his blood into Tanjiro, hoping he would become the ultimate Demon, one who could conquer the sun, something even Muzan couldn’t do. And it worked.
Tanjiro became insanely powerful. His strength, speed, and regeneration were on a whole new level. He could fight even while injured, and best of all, he was completely immune to sunlight. That made him the only Demon who didn’t need to hide in the dark. But here’s what made Tanjiro even more dangerous: he could still use Sun Breathing, the most powerful breathing technique created to kill Demons.
Muzan: The Demon King

Muzan Kibutsuji was the first Demon and the most feared for over a thousand years. He created all the Demons and had insane powers like body manipulation, instant regeneration, and multiple brains and hearts to avoid getting killed.
He was fast, ruthless, and smart. He didn’t just fight with power; he used fear, mind games, and dirty tricks. He even took on multiple Hashira and Demon slayers at the same time and nearly won. Muzan was definitely a beast. But no matter how strong he was, Muzan had one major weakness: sunlight. It terrified him, burned him, and was the only thing he couldn’t survive.
Comparing Their Strengths

Let’s break this down simply:
Raw Power: Both are extremely powerful, but Demon Tanjiro had a serious edge with Sun Breathing combined with his Demon strength.
Regeneration: Muzan’s regeneration is top-tier, but Tanjiro’s regeneration was just as fast, if not faster, in Demon form.
Sunlight: This is the biggest difference. Tanjiro could walk in sunlight like a normal human, while Muzan couldn’t even touch it.
Experience: Muzan has centuries of experience, while Demon Tanjiro only existed for a short time. But experience doesn’t always matter when the opponent has superior power and zero weaknesses.
Mindset: Muzan was cold, selfish, and feared death. Demon Tanjiro still had a strong human heart deep inside; he fought to protect others, not just to survive. That kind of motivation gives people strength beyond limits.
The Hypothetical Fight

If this Demon King Tanjiro vs Muzan battle actually happened, it would be chaos. Muzan would come at Tanjiro with everything: tentacles, poison, body splits, and more. But Tanjiro wouldn’t back down. With his Demon body and Sun Breathing techniques, he would match Muzan blow for blow.
The fact that Tanjiro can fight in daylight would be a massive problem for Muzan. Muzan’s entire fighting style is based on staying in the dark and overwhelming his enemy. But against Tanjiro, he wouldn’t have that luxury. If the fight lasted until sunrise, Muzan would lose automatically.
Final Verdict: Who Wins The Demon King Tanjiro Vs Muzan Battle?

At the end of the day, Demon Tanjiro would win this fight. He has all of Muzan’s strengths and none of his weaknesses. He’s faster, stronger, immune to sunlight, and still has the heart of a protector.
Muzan may have created him hoping to continue his legacy, but he actually created someone better than himself; someone who could destroy him if it came down to it. So in the battle of Demon King Tanjiro vs Muzan, the winner is clear: Demon Tanjiro takes the crown.
Release Year | MAL Rating | Animation Studio | Genre | Watch On |
April 2019 | 8.44 | Ufotable | Action, Supernatural |
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