It is a hell of a move to conclude Demon Slayer, one of the biggest anime and manga of the past 10 years, with a trilogy of movies. I have to assume that putting it in theaters is a way to both create hype and make lots of money in the process, and dang it, it’s working. Not only is Demon Slayer: Kimetsu no Yaiba –Infinity Castle- Part 1 an overall compelling watch, but it’s apparently the biggest box office weekend in the US for an anime film since Pokémon: The First Movie.
Despite being the finale, the premise of the Infinity Castle movies is a simple one: After a costly confrontation against Kibutsuji Muzan, protagonist Kamada Tanjiro and the rest of the Demon Slayer Corps seemingly have the villain cornered. However, the heroes suddenly find themselves teleported into the heart of enemy territory. Here in the infinitely expanding castle that Muzan calls his home base, they must face his strongest lieutenants while dealing with a space that defies logic and reason. If they don’t take out the demons here, all will be lost.
The setting is pretty much perfect for a shounen battle anime: an array of elaborate and intense fight scenes that also tell interesting stories about the characters involved. Some clashes are culminations of previous storylines, others reveal previously unknown sides of characters, and everything remains pleasantly hard to predict. It’s a little bit Ninja Scroll and a little bit Girls und Panzer films in terms of never letting up on the tension, with the occasional requisite backstory flashback being the main way to calm things down.
But while Infinity Castle Part 1 is pretty much all “fight, fight, fight,” I think it still portrays compelling and often tragic dramas involving both the beauty and ugliness of humanity in a satisfying manner. Through it all, the film emphasizes ideas that have been core to Demon Slayer: Mutual cooperation can overcome obstacles, compassion is a strength, and humanity is built on helping the weak and paying it forward to the next generation.
One issue with this movie is that while it has not yet been adapted for TV episodes, it still feels like a series of episodes or chapters stitched together. There was little attempt to structure it as a feature-length film, especially when it comes to the positioning of flashbacks (of which there are many). Moreover, Part 1 is over two and a half hours long, and while I enjoyed every minute, it did feel a little bloated and awkwardly paced at times.
Every battle in the movie are amazing, but I do want to give particular attention to the main fight of this first movie, so there will be SPOILERS AHEAD.
As Tanjiro and the others try to make their way through, he and Giyu the Water Hashira are attacked by Akaza, Muzan’s third strongest minion, and the one with whom Tanjiro has the most history. It was Akaza who killed a valiant Rengoku Kyojuro during the Mugen Train arc, and when they last met, Tanjiro was far outclassed by the demon and his hand-to-hand fighting skills. However, Tanjiro also left a searing impression in Akaza’s mind, calling him a coward for fleeing at dawn when Demon Slayers have to fight demons in the dark of night all the time.
In this violent reunion, Tanjiro manages to accomplish what he couldn’t before when he slices through Akaza’s body. While this is only a temporary setback for the demon, it’s the first sign that Tanjiro has grown as a warrior. Unfortunately, Akaza quickly adapts to both Tanjiro and Giyu, and it isn’t until Tanjiro manages to piece together various thoughts and memories related to Akaza, the nature of battle and conflict, and his own childhood with his father that he manages to tap into a higher plane of martial expression (the “transparent world,” where killing intent is absent and only movement remains) that he deals a catastrophic blow to his opponent.
While Akaza somehow survives and even starts to regenerate from the brink of demise, the fact that Tanjiro surpassed him in battle, if only for an instant, helps jog Akaza’s faded memories. Remembering his turbulent past life as a child thief trying to get medicine for his gravely ill father, and the second chance he received from a martial artist and daughter before Akaza’s happiness was ripped from him by a petty local clan, Akaza realizes that Tanjiro is exactly the kind of person he wanted to be. The bloody pursuit of strength that has defined him as a demon is revealed to be a corruption of his own desire to live honorably and protect his loved ones. Akaza willingly defeats himself (literally), and visions of his departed fiancee, adoptive father, and birth father help him to shake off Muzan’s control and pass on for good.
I am utterly impressed by the way this fight plays out. It just encapsulates so much of what makes Demon Slayer a great series, especially the way Tanjiro’s heart breaks through even the toughest obstacles, including the very demons he fights. Akaza is shown to be a human who struggled with the unfairness of the world that punishes the poor for merely existing, and that much of the trauma he suffered came from human hands. Yet, he also recalls a lesson from his old life that it’s never too late to start over, and this puts him on the path to relinquishing his demonhood, even at the cost of his life.
END OF SPOILERS
As someone who was there in the theater to watch Mewtwo Strikes Back back in 1999 and remember the buzz surrounding it, this record-breaking achievement says a lot about how far anime has come. This is maybe the biggest sign that anime has truly, truly arrived on American shores, and the long-time fan in me rejoices in this development. And given what a great watch Infinity Castle Part 1 is, I wouldn’t be surprised if fans are going to watch it multiple times.
Now it’s time to see how the next film plays out.










