An anime television series adaptation produced by Maho Film, marketed in English under the title Blue Miburo, premiered in October 2024.

Chirinu Nio is a docile and kind boy, devoted to his family, but deep down inside he burns with a fervent desire for justice.

His turbulent "blue spring" (a Japanese idiom referring to one's adolescence) begins when he meets Hijikata Toshizō and Okita Sōji of the Miburo, a group of hated rōnin.

Moved by his pure and sincere wish to change the world, Nio joins the Miburo—abbreviation of Mibu Rōshigumi (壬生浪士組)—one of the most dangerous group of swordsmen, which eventually would become the Shinsengumi.

[46] It is produced by Maho Film and directed by Kumiko Habara, with scripts written by Kenta Ihara, character designs handled by Yūko Ōba and Miyako Nishida, and music composed by Yuki Hayashi.