# Japanese box office success of ‘Mama ga Mou Kono Sekai ni In > Live situation record from CLSTR: https://clstr.news/situations/japanese-box-office-success-of-mama-ga-mou-kono-sekai-ni-in > Updated: 2026-10-15T01:02:00.000Z. Sources: 4. Developments: 2. The Japanese film ‘Mama ga Mou Kono Sekai ni Inakutemo: Watashi no Inochi no Nikki’, directed by Yuki Yamato, has seen significant commercial success following its release. During its debut weekend from October 2–4, the film, which is based on the true story of Kazu Endo, debuted at number one in the Japanese box office rankings. It drew 292,000 viewers and generated 441 million yen in revenue during its first three days. Within two weeks of its release, the film reached a major milestone, earning 1.8 billion yen in box office revenue and attracting 1.2 million viewers. Lead actors Haruna Kawaguchi and Mahiro Takasugi have discussed the film’s impact, with Takasugi noting that the positive reception has provided him with courage. The production is also noted for director Yuki Yamato being the first female director in her 30s to helm a major production released in approximately 350 theaters nationwide. ## Timeline ### 2026-10-15: Film ‘Mama ga Mou Kono Sekai ni Inakutemo’ reaches 1.8 billion yen in box office revenue The Japanese film ‘Mama ga Mou Kono Sekai ni Inakutemo’ has surpassed 1.8 billion yen in box office revenue and 1.2 million viewers following its release. 2 sources. https://clstr.news/cluster/film-mama-ga-mou-kono-sekai-ni-inakutemo-reaches-18-billion-yen-in-box-office-revenue ### 2026-10-05: Japanese box office: ‘Mama ga Mou Kono Sekai ni Inakutemo’ debuts at number one The film ‘Mama ga Mou Kono Sekai ni Inakutemo’ debuted at number one in the Japanese weekend box office, followed by Steven Spielberg’s new sci-fi thriller ‘Disclosure Day’ in second place. 2 sources. https://clstr.news/cluster/japanese-box-office-mama-ga-mou-kono-sekai-ni-inakutemo-debuts-at-number-one --- Cite as: Japanese box office success of ‘Mama ga Mou Kono Sekai ni In. CLSTR, https://clstr.news/situations/japanese-box-office-success-of-mama-ga-mou-kono-sekai-ni-in