Natsume Ono to Launch Korore Spinoff Manga of ACCA-13, Badon Manga

The official X/Twitter account of Square Enix's Monthly Big Gangan magazine revealed on Monday that Natsume Ono will launch a new manga spinoff of her ACCA-13 Territory Inspection Department (ACCA 13-Ku Kansatsu-Ka) and BADON manga titled KORORE (preview image seen bottom left in post below) in the magazine's third 2027 issue on February 25, 2027. As with BADON, the title KORORE is one of the 13 territories in the Dowa Kingdom, the shared setting that began with ACCA 13-Territory Inspection Department.

🎊ビッグガンガン創刊15周年記念祭🎊 おかげさまで月刊ビッグガンガンは創刊15周年！ 感謝を込めて、スペシャル企画が続々登場✨ 🔥新連載5作品始動！ 📚豪華作家陣の読切を続々掲載！ 🎁連載中全作品の特製QUOカードを大プレゼント！ そして気になるQUOカードは…… 全23種類・計230名様分！ 👇詳細は次のポストをチェック！

— 月刊ビッグガンガン (@big_gangan) October 26, 2026

ACCA 13-Territory Inspection Department ran in Monthly Big Gangan from June 2013 to October 2016, and Square Enix released six compiled book volumes for the manga. Yen Press released the manga in English. The manga inspired a 2017 television anime, which Crunchyroll streamed. The anime had an OVA episode sequel titled ACCA: 13-Territory Inspection Dept. Regards in February 2020, which Crunchyroll also streamed.

Ono launched the BADON manga in Monthly Big Gangan in January 2019, and ended it in March 2024. Square Enix released the manga's ninth volume in April 2024.

Since Ono made her debut in 2003 with La Quinta Camera - 5 Banme no Heya, her works have included House of Five Leaves, Ristorante Paradiso, Gente - Ristorante no Hitobito, Tesoro, and Not Simple. Viz Media has published all of these titles in North America. Kodansha USA published Ono's Danza manga in English.

Ono's other manga series include Lady and Oldman in Shueisha's Ultra Jump magazine, and Have a Great Sunday in Kodansha's Morning two magazine.

Aside from ACCA 13-Territory Inspection Department, House of Five Leaves, Ristorante Paradiso, and have all inspired television anime adaptations. She also provided the character designs for Shingo Natsume and Madhouse's upcoming ghost – end of night (ghost/yoru no hate) theatrical anime, which opens on February 11. Shingo Natsume also directed the adaptation of Ono's ACCA 13-Territory Inspection Department

Source: Monthly Big Gangan X/Twitter account