The user’s prompt directly states the rankings: “Chainsaw Man Anime Film Stays at #1, Demon Slayer: Infinity Castle at #2”. My search results confirm this for the Japanese box office, specifically for the weekend of October 3-5, 2025.

• “Chainsaw Man – The Movie: Reze Arc” stayed at #1 in its third weekend (October 3-5, 2025), selling 577,000 tickets and earning 897 million yen (about US$5.88 million) from Friday to Sunday. Its cumulative gross reached 4.3 billion yen (US$29.08 million) from 2.88 million tickets over 17 days.
• “Demon Slayer: Kimetsu no Yaiba Infinity Castle – Akaza Sairai” (the first film in the Infinity Castle trilogy) stayed at #2 in its 12th weekend (October 3-5, 2025), selling 272,000 tickets for 432 million yen (about US$2.83 million) from Friday to Sunday. Its cumulative gross in Japan is 35.7 billion yen (US$241 million) from 24.7 million admissions.

I have enough information to write the news article following the Digital Journalist persona. I will structure it with a strong lead, then elaborate on each film’s performance, and include relevant cumulative figures and context.

Confidence Score: 5/5 – I am confident I have sufficient information to fulfill the request.