Kaiju No. 8, created by Naoya Matsumoto, has swiftly become one of the most popular shonen anime in recent history, blending exciting high-stakes action with a grounded, relatable protagonist. The first season of the anime, which aired in the spring 2024 season, completed its 12-episode run with an impressive 8.29 out of 10 on the MyAnimeList platform.
Soon after its success, the second season was unsurprisingly greenlit. Given how close we are to the release of Kaiju No. 8 Season 2, here is everything you need to know before heading into it.
Kaiju No. 8 is an exhilarating tale set in a world threatened by giant monsters known as Kaiju. Humanity’s only source of protection is the Defense Force. The protagonist, Kafka Hibino, is a middle-aged man who once wished to become an officer in this force but failed to clear the exam.

While working for a company that cleans up Kaiju carcasses, his life drastically changes when he is turned into a humanoid Kaiju. Gifted with the power he had always dreamt of, Kafka works towards fulfilling his dreams and joining his childhood friend Mina in the Defense Force.
The first season of Kaiju No. 8 ended with Kafka’s identity as the titular monster being revealed. He was captured by the Defense Force and faced its director general in a fight. Soon after, Kafka was judged to be in control of his impulses and recruited as a weapon that would contribute to humanity’s cause.
Season 2 will pick up from here and will start by adapting the Kaiju Weapon Arc from chapter 40 of the manga. As the name suggests, Kafka will begin his duties as the Defense Force’s Kaiju weapon, pairing up with Captain Gen Narumi to gain accomplishments on the field. However, things soon go wrong as Kaiju No. 9 appears in its quest to gain power and kill the human kaiju.
Having shown unparalleled intelligence, this antagonist topples the Defense Force by capturing its strongest soldier, Isao Shinomiya. With the end of the world approaching nearer, Kafka, Narumi, Kikoru, and all other cast members work relentlessly to strengthen their powers and face Kaiju No. 9 and his forces.
Kaiju No. 8 Season 2 will begin airing in July 2025 in the Summer 2025 anime season. It will continue to be adapted by Production I.G, who did a stellar job with the first season. The sequel will be directed by Shigeyuki Miya, who has worked on Vinland Saga Season 2, Hajime no Ippo, and several other acclaimed projects.
Tetsuya Nishio and Fumiyuki Gou will continue their roles as the Chief Animation Director and Sound Director, respectively. Finally, Yuuta Bandou and Shinji Kimura will take on Music and Art Direction.
Hence, Kaiju No. 8 Season 2 mostly retains the same team as the first season. Given how the visuals and music were able to greatly elevate the source material, fans can have high expectations for the upcoming sequel as well.
Kaiju No. 8 Season 2 cast
Season 2 of the anime will feature the familiar voices of season 1. These include:
- Masaya Fukunishi as Kafka Hibino
- Wataru Katou as Reno Ichikawa
- Ai Fairouz as Kikoru Shinomiya
- Kouki Uchiyama as Gen Narumi
- Asami Seto as Mina Ashiro
- Kengo Kawanishi as Soushirou Hoshina
- Hiroyuki Yoshino as Kaiju No. 9
- Tesshou Genda as Isao Shinomiya