The strongest Demon Slayer villains are the Twelve Kizuki and their master, Muzan Kibutsuji, ranked here by Blood Demon Art versatility, canon feats against Hashira-tier fighters, and durability, not screen time. Kokushibo, Doma, and Akaza sit closest to Muzan; Nakime and Enmu anchor the bottom despite their fame.
Last updated: September 4, 2026. This ranking covers villains only — for a mixed hero-and-villain power list, see our companion piece, The 15 Strongest Demon Slayer Characters, Ranked.
Demon Slayer’s anime is currently mid-adaptation of its final arc through the Infinity Castle film trilogy, which is the source for most of the feats below. Part 1 (subtitled Akaza Returns) opened in Japan on July 18, 2025 and in US/Canada theaters on September 12, 2025; Ufotable has confirmed Part 2 will not arrive in 2026 and is now targeting 2027 at the earliest, with Part 3 expected to close the trilogy afterward. For the exact rollout, see our own coverage of the Infinity Castle streaming release date.
How We Ranked These Demons
Twelve Kizuki numbers are a loose proxy for strength, not a literal one — the ranking here breaks from raw rank order in one deliberate place: Nakime. She holds a numbered Upper Moon slot yet Kokushibo himself dismisses her as a non-combatant, because her power reshapes the battlefield (the Infinity Castle itself) rather than her body. That is the real structural split among these villains: some scale through personal combat stats (Akaza, Kokushibo), some through attrition and regeneration (Doma, Hantengu), and a rare few through pure battlefield control that a stat sheet can’t capture. Ranking by number alone would put a support demon above fighters who have solo-killed Hashira, so this list weighs combat feats first and utility second.
Upper Moon Power Comparison
| Demon | Rank | Blood Demon Art | Signature Feat |
|---|---|---|---|
| Kokushibo | Upper Moon 1 | Moon Breathing (demon swordsmanship) | Fought four Hashira simultaneously and nearly won |
| Doma | Upper Moon 2 | Frost/ice manipulation | Absorbed and slowly killed Shinobu Kocho with her own poison |
| Akaza | Upper Moon 3 | Destructive Death martial arts | Killed Flame Hashira Kyojuro Rengoku |
| Hantengu | Upper Moon 4 (original) | Clone-splitting via suppressed emotions | Survived being cut apart by splitting into five separate demons |
| Gyutaro & Daki | Upper Moon 6 | Poison blood sickles / living obi sash | Nearly killed Sound Hashira Tengen Uzui and two of his wives |
| Nakime | Upper Moon 4 (promoted) | Biwa-driven spatial manipulation | Single-handedly reshapes the Infinity Castle in real time |
1. Muzan Kibutsuji — The Demon King
Muzan Kibutsuji ranks as the single strongest Demon Slayer villain because he created every other demon on this list and can rewrite his own biology mid-fight. In his final battle he absorbed abilities from dozens of demons at once and fought the surviving Hashira and Tanjiro simultaneously, only losing when trapped past sunrise.
Every Blood Demon Art in the series traces back to Muzan’s own cells, which is why the Upper Moons below are best read as fragments of his power rather than independent rivals to it.
2. Kokushibo — Upper Moon One
Kokushibo is the strongest of the Twelve Kizuki because he is the only demon who mastered a Breathing Style, Moon Breathing, giving him swordsmanship on top of demon regeneration. In the Infinity Castle he fought Muichiro, Gyomei, Sanemi, and a poison-augmented Shinobu clone at once and nearly killed all four before sunrise forced his death.
3. Doma — Upper Moon Two
Doma ranks above Akaza because his ice-based Blood Demon Art pairs with near-limitless stamina and a body that keeps functioning even after being split apart. He led the Eternal Paradise Faith cult for over a century and, in the anime, fatally poisoned Insect Hashira Shinobu Kocho by absorbing her toxin faster than it could kill him outright.
4. Akaza — Upper Moon Three
Akaza is the fastest melee fighter among the Upper Moons, built entirely around Destructive Death martial arts that let him sense and counter attacks on reflex. He killed Flame Hashira Kyojuro Rengoku aboard the Mugen Train, then in the Infinity Castle nearly defeated Tanjiro and Giyu Tomioka together before his suppressed human memories resurfaced.
A Deadline review of the film by critic Damon Wise called the Infinity Castle fights a series of “highly individual fights that play out with the intensity of a Sergio Leone gun battle,” singling out Akaza among the trilogy’s surprisingly self-aware villains.
5. Hantengu — Upper Moon Four (Original)
Hantengu is one of the hardest Kizuki to actually kill because every strike that would finish a normal demon instead splits him into a new clone driven by a single suppressed emotion — rage, sorrow, joy, and more each getting their own body. It took a combined assault from four Hashira and Demon Slayer Corps members to run down every clone before he could regenerate.
6. Gyutaro & Daki — Upper Moon Six
Gyutaro and Daki share Upper Moon Six as siblings fused into one demon body, combining Gyutaro’s poisoned blood sickles with Daki’s living obi-sash blades for a two-front assault few Slayers survive. In the Entertainment District arc they nearly killed Sound Hashira Tengen Uzui and severed the arms of two of his wives before Tanjiro’s group finally brought them down together.
7. Nakime — Upper Moon Four (Promoted)
Nakime is ranked below the demons who out-fight her one-on-one, but her biwa lets her fold and reshape the entire Infinity Castle in real time, scattering Hashira across corridors that regenerate faster than they can be destroyed. Kokushibo himself calls her a non-combatant, which is exactly why she is dangerous: she wins by controlling the battlefield, not by swinging at it.
8. Enmu — Lower Moon One
Enmu ranks lowest on this list by raw combat power — he never held an Upper Moon slot — but no villain outside the Kizuki did more damage per screen minute. His Sleep Demon Art trapped an entire train of passengers and three Hashira-tier fighters in manufactured dreams before Rengoku burned through the illusion and killed him.
Why These Villains Are Bigger Than Ever in 2026
Infinity Castle Part 1 had sold over 27.34 million tickets in Japan for 40.02 billion yen (about $250.7 million) by its 254th day of release on March 29, 2026, according to Anime News Network, making it only the second film in Japanese history to cross that threshold. That sustained box office run is a big part of why these villains keep resurfacing in search interest well after the manga’s 2020 ending.
Frequently Asked Questions
Who is the strongest villain in Demon Slayer?
Muzan Kibutsuji is the strongest Demon Slayer villain. He created every other demon in the series and can absorb abilities from them at will, which is why even Upper Moon One, Kokushibo, ranks below him.
Is Kokushibo stronger than Akaza?
Yes. Kokushibo holds Upper Moon One, the top Kizuki rank, because he is the only demon to master a Breathing Style. In the Infinity Castle he fought four Hashira simultaneously and nearly defeated all of them, a feat no other Upper Moon accomplishes solo.
Has Demon Slayer: Infinity Castle Part 2 been released yet?
No. Part 1 released in Japan on July 18, 2025 and in US theaters on September 12, 2025. Studio Ufotable has confirmed Part 2 will not arrive in 2026 and is now expected in 2027 at the earliest, with Part 3 closing the trilogy afterward.
Why is Nakime ranked below weaker-looking demons like Hantengu?
Nakime holds a numbered Upper Moon rank, but Kokushibo classifies her as a non-combatant because her power reshapes the Infinity Castle rather than winning fights directly. This list ranks combat feats first, so demons with direct Hashira kills rank above her.
Further Reading
For the Slayers who fight these demons, see All 9 Hashira, Ranked by Strength, and for full viewing order including every Infinity Castle release so far, see our Demon Slayer Watch Order guide.
