is a Japanese manga series written and illustrated by Ikka Matsuki. It began serialization on Shogakukan's Ura Sunday website and MangaONE app in November 2021. An anime television series adaptation produced by Studio Kafka is set to premiere in April 2026.
At the end of the Reiwa era, Japan was hit by the effects of nuclear war around the world, resulting in an influx of refugees, followed by a deadly virus and a devastating earthquake, while the country was mismanaged, with those in power levying heavy taxes, leading to famine. Eventually, the people began a revolt, which overthrew the national government, though the population was reduced to a tenth of its pre-war size, the technology had been reduced to that of the Meiji era, and the country was divided into three kingdoms: Yamato, Takeo, and Seii. One hundred years later, a man named Aoteru Misumi leads a movement to reunify the country.
Written and illustrated by Ikka Matsuki, Nippon Sangoku began serialization on Shogakukan's Ura Sunday website and MangaONE app on November 24, 2021. Its chapters have been compiled into six volumes as of November 2024.
An anime television series adaptation was announced on January 27, 2026. The series will be produced by Studio Kafka, co-produced with Amazon MGM Studios, and directed by Kazuaki Terasawa, with Teruko Utsumi handling series composition, Takahiko Abiru designing the characters and serving as chief animation director, and Kevin Penkin composing the music. Megumi Han will provide the narration. It is set to premiere on April 7, 2026 on Tokyo MX and BS NTV. The opening theme song is performed by Tatsuya Kitani, while the ending theme song is theme song is performed by Leina. Amazon Prime Video will stream the series worldwide beginning on April 5, two days before the scheduled broadcast on Japanese linear television.
The series was nominated for the eighth Next Manga Awards in 2022 in the web category and was ranked 17th out of 50 nominees. It was also nominated for the ninth edition in 2023. The series was ranked 12th, alongside Fool Night and ', in the 2023 edition of Takarajimasha's Kono Manga ga Sugoi! guidebook for the best manga for male readers. The series was nominated for the 16th Manga Taishà  and was ranked fifth alongside A Witch's Life in Mongol. The series ranked third in the Nationwide Publishers Recommended Comics of 2023 list. The series was ranked 22nd in Da Vincis "Book of the Year" list in 2023.