The official website for the Blue Miburo anime has released a new promotional video and key visual for its highly anticipated second season, officially titled the “Serizawa Assassination Arc.” The new season is slated to premiere in Japan on December 20, 2025.
The announcement provides fans with a glimpse into the upcoming storyline, which will delve into a pivotal moment for the Miburo ronin, who would later become the renowned Shinsengumi.
Diving into the “Serizawa Assassination Arc”
The second season of Blue Miburo will specifically adapt the “Serizawa Assassination Arc” from Tsuyoshi Yasuda’s original historical samurai manga. This arc focuses on the events surrounding the assassination of Serizawa Kamo, one of the original leaders of the Mibu Roshigumi in 1863. This period is a crucial point in the formation and early history of the Shinsengumi, marking a turbulent time as the shogunate faced collapse amidst political upheaval in Kyoto.
Key Visual and Trailer Details
The newly released promotional video offers a dynamic preview of the action and drama awaiting viewers in the “Serizawa Assassination Arc.” While specific details of the video’s content were not explicitly detailed in the search results, promotional videos typically showcase new character designs, pivotal scenes, and hints at the narrative direction. The accompanying key visual depicts the “Miburos walking with a calm expression,” hinting at the gravitas and significant events to unfold.
Production Staff and Voice Cast
The animation for Blue Miburo Season 2 continues to be handled by MAHO FILM. The main staff from the first season will reprise their roles, including Kumiko Habara as director, Kenta Ihara overseeing the series scripts, and Yuko Oba and Miyako Nishida as character designers. Yuki Hayashi is also returning to compose the music.
The voice cast for the core characters includes:
- Shuichiro Umeda as Nio Chirinu
- Yohei Azakami as Toshizo Hijikata
- Kensho Ono as Okita Souji
- Chiaki Kobayashi as Hajime Saito
- Shun Horie as Taro Tanaka
- Ryota Takeuchi as Serizawa Kamo
Other notable cast members include Tomokazu Sugita as Isami Kondo, Yuko Natsuyoshi as Iroha Chirinu, and Megumi Ogata as Kikuchiyo.
Original Manga and Previous Season Overview
Tsuyoshi Yasuda’s Blue Miburo manga first began serialization in Kodansha’s Weekly Shonen Magazine in October 2021. The manga’s first part concluded in April 2024, and the “Shinsengumi Arc” (its second part) started in the same month. Kodansha USA releases the manga in English under the title The Blue Wolves of Mibu.
The first season of the anime, consisting of 24 episodes, aired in Japan from October 19, 2024, to March 29, 2025. Crunchyroll streamed the first season worldwide. The series tells the story of Nio, a kindhearted orphan who joins the Miburo ronin, led by Hijikata Toshizo and Okita Soji, as they strive to defend Kyoto during a tumultuous period.
