Demon Slayer: Infinity Castle Smashes Japanese Box Office with Record‑Breaking Release Day Success

Demon Slayer: Infinity Castle Breaks All Box Office Records on Release Day in Japan

Demon Slayer: Infinity Castle exploded onto Japanese screens on July 18, 2025, setting a new all‑time opening day benchmark for domestic film releases. The film earned ¥1.64 billion (about US $11.1 million) in just one day, easily surpassing the previous record held by Mugen Train with its ¥1.2 billion debut. This seismic fiscal achievement reflects not only the franchise’s vast popularity but also its enduring appeal in modern cinema.

Shattering the Three‑Day Weekend Record

By the close of its first weekend, Infinity Castle had amassed a staggering ¥5.52 billion (approximately US $37.4 million) over three days, overtaking Mugen Train’s previous total of ¥4.6 billion. Over 3.8 million viewers flocked to cinemas, highlighting the film’s wide-reaching resonance among fans of all ages.

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Historic Four‑Day Holiday Triumph

Thanks to a local holiday that extended its debut, the movie saw even more success. Within four days, it had grossed ¥7.3 billion (about US $49.6 million), making it not only the biggest currency‑record weekend in Japanese box office history but also securing its place as the second‑largest domestic film of 2025, trailing only behind Detective Conan. On single‑day earnings, it even soared to ¥2.03 billion on Sunday, establishing a record for highest day‑of debut.

IMAX Reigns and Ticket Sales Surge

The IMAX format also saw unprecedented popularity with Infinity Castle. The movie raked in US $3 million on opening day via IMAX—a domestic record for both Japanese and international titles. Attendance soared past 5.1 million viewers in just four days, making it an indisputable pop culture juggernaut.

Comparison to Mugen Train and Global Implications

While Infinity Castle has not yet surpassed Mugen Train’s global gross of over US $507 million, experts say the yen’s current weakness and elevated ticket prices make direct comparisons less straightforward. Regardless, it has already outperformed Mugen Train domestically—achieving higher opening weekend totals—signaling momentum for potential worldwide box office domination.

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The Phenomenon Behind the Phenomenon

The film is the first installment in a planned three‑movie adaptation of the climactic “Infinity Castle” arc from the manga — following back‑to‑back successful anime seasons. Studio Ufotable’s signature blend of breathtaking animation, emotional depth, and high‑octane choreography has consistently drawn critical acclaim. Early fan reactions commend its “mesmerizing visuals” and deliverance of the climactic showdown set within Muzan Kibutsuji’s labyrinthine fortress.

International Rollout and Future Prospects

After dominating Japanese cinemas, Crunchyroll and Sony Pictures Releasing will begin the movie’s international rollout in August, with North America and India premiering on September 12, 2025. Questions are already being raised about whether Infinity Castle can match—or even exceed—the global legacy of Mugen Train, which soared past half a billion dollars worldwide.

Final Take

In under a week, Demon Slayer: Infinity Castle has obliterated domestic box office records only days into its release. Its dominance—¥1.64B Day 1, ¥5.5B in three days, and ¥7.3B in four—signals a monumental cultural event. Whether this anime juggernaut ultimately eclipses Mugen Train globally remains unknown, but its early triumphs suggest nothing can stop this final arc from becoming the most iconic chapter in Demon Slayer history.

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