Okay, so Demon Slayer is seriously HUGE right now. What started as a popular “manga” has blown up into a movie monster. From the crazy success of Mugen Train to the insane debut of Infinity Castle – Part 1, it’s been wild to watch. The new movie just crushed box office records in Japan in, like, days. It’s safe to say that Demon Slayer has changed the game for anime movies worldwide.
Infinity Castle – Part 1 Kicks Off with a Bang!
Infinity Castle – Part 1 exploded on July 18, 2025, completely changing the game for Japanese movies. On its first day, it made about ¥1.64 billion (that’s around $11.1 million) as over 1.15 million people poured in to see it. It didn’t just beat Mugen Train’s opening; it straight-up grabbed the crown for the best opening day ever in Japan’s movie history.
Day 3 Box Office Smash: ‘Demon Slayer’ Shatters Records!
Wow! On its third day, the movie raked in ¥2.03 billion (approximately $13.8 million), securing the number one spot for the highest single-day gross in Japan ever. Seriously, no other movie has made that much money in one day. It just goes to show how much people are loving the new Demon Slayer movie!
Biggest 3-Day Weekend Ever: Beats Mugen Train!
The movie made a whopping ¥5.52 billion (about $37.5 million) over its opening weekend, July 18-20, with almost 3.84 million people hitting the theatres. That’s even better than Mugen Train’s first three days, which everyone thought was unbeatable until now. Infinity Castle is a huge hit, and fans are clearly loving it!
Who’s ready for a long weekend? It’s holiday time!
Japan’s Marine Day gave the movie a nice boost, letting it keep up its amazing winning streak through the whole four-day weekend. By the time the holiday was over, it had made a whopping ¥7.31 billion (about $49.5–49.6 million) with 5.16 million people buying tickets. And guess what? It’s now the highest-grossing opening weekend ever in Japan!
IMAX is a Big Deal: The Cinema’s Cool New Tool
Those fancy, high-end screenings were a huge part of why the film did so well. Infinity Castle raked in $3 million from IMAX on its first day alone, which is the most IMAX openings in Japan EVER. And only after four days, that number jumped to $3.5 million, making it the biggest IMAX release the country has ever seen.
Fastest ¥10 Billion Yet!
Infinity Castle – Part 1 just crushed it, hitting ¥10 billion at the box office faster than anyone else – a mere eight days! That’s even quicker than Mugen Train, which took ten days to reach the same goal. By day eight, the movie had raked in about ¥12.87 billion (around $87 million) and had 9.1 million people flocking to see it.
Infinity Castle versus Mugen Train: A Battle at the Box Office
Okay, so Infinity Castle is killing it at the box office! It’s outpacing Mugen Train in speed and how big its openings are. It blew past all of Mugen Train’s first records, like the first day, the whole weekend, and how fast it made ¥10 billion. Mugen Train is still the anime king in Japan for money, but Infinity Castle is catching up fast.
Infinity Castle Goes Global: Get Ready, World!
After its smash hit run in Japan, Infinity Castle is heading your way! The movie is set to premiere in India, the U.S., the U.K., and Canada in September 2025. Tickets go on sale in August, so mark your calendars! After the huge success of Mugen Train around the world, everyone’s hoping Infinity Castle will be even bigger!
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Why It’s Still a Hit: Fans, Flair, and Luck
Demon Slayer keeps crushing it at the box office thanks to its huge, dedicated fanbase, top-notch production, and clever marketing. With over 220 million manga copies already out there, fans are always hyped for what’s next. The movies look amazing and really hit you in the feels. Plus, they do cool stuff like IMAX events and collectable stuff, so everyone wants in. Unlike Mugen Train, which came out at just the right time during the pandemic, Infinity Castle is killing it even with all the competition, showing how loved it is.
So, is this the best we’ll see from Demon Slayer, or is it the new normal?
Demon Slayer: Infinity Castle – Part 1 kicked off with a bang, crushing almost every record out there – way beyond what most folks thought possible. Mugen Train blew everyone away back in 2020, but Infinity Castle is changing the game, raking in cash faster and pulling in even bigger crowds. As it gets ready to hit theatres worldwide, it looks like Demon Slayer isn’t just getting lucky; it’s setting a whole new level for anime movies.
Written by Nidhi Singh