Kaiju No. 8 season 2 unveils additional cast and opening theme with new trailer ahead of July 2025 premiere

On Thursday, June 19, 2025, TOHO animation released a new trailer for Kaiju No. 8 season 2. The trailer unveiled two new cast members and revealed and previewed the opening theme song for the second season. The new theme song will be performed by Aurora.

Kaiju No. 8, written and illustrated by Naoya Matsumoto, is a Japanese manga serialized in Shueisha's Shonen Jump+ since July 2020. Production I.G later picked up the manga for an anime adaptation and has since released a TV anime and an omnibus movie. The anime's second season will premiere on July 19.

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Kaiju No. 8 season 2 previews opening theme song with new trailer

On Thursday, June 19, 2025, Kaiju No. 8 season 2 released its second trailer. The new trailer mainly gave fans glimpses of the Japan Anti-Kaiju Defense Force's First Division in action. While it opened with some action scenes involving Rin Shinonome, Eiji Hasegawa, Gen Narumi, Kafka Hibino, and Kikoru Shinomiya against some small monsters, the trailer soon came to a standstill with the sudden appearance of Kaiju No. 9.

"I've always loved anime and will never change my love for anime, so I'm so honored to have created this song for Kaiju 8." - Aurora

While the trailer resumed showing the battle scenes, it revealed and previewed the opening theme song for Kaiju No. 8 season 2. The opening theme song will be called "You Can't Run From Yourself" and will be performed by Norwegian singer-songwriter Aurora.

With that, the anime also announced some new cast members for the upcoming anime season. Hiroki Yasumoto voices Eiji Hasegawa, and Kana Hanazawa voices Rin Shinonome.

Hiroki Yasumoto has previously voiced King in One Punch Man, Charon in Fire Force, Elhart in The Rising of the Shield Hero, and Yasutora Sado in Bleach. Meanwhile, Kana Hanazawa has previously voiced Mitsuri Kanroji in Demon Slayer, Ichika Nakano in The Quintessential Quintuplets, Akane Tsunemori in Psycho-Pass, and Mayuri Shiina in Steins;Gate.

Eiji Hasegawa and Rin Shinonome as seen in Kaiju No. 8 season 2 (Image via Production I.G)

Kaiju No. 8 season 2 will premiere on July 19 at 11 pm JST on TV Tokyo and its affiliated channels. The anime will also stream on X worldwide in real time as it airs in Japan. However, before that, the anime is set to premiere the original side story episode "Hoshina's Day Off" on July 5, at 11:00 pm JST, on TV Tokyo, its affiliates, and X.

Before the first broadcast of Kaiju No. 8 season 2, the anime is set to conduct an advanced screening at TOHO Cinemas Hibiya on Sunday, July 13, as part of which, fans will get to watch episodes 1 and 2 before their official release.

Kaiju No. 8 season 2 advance screening announcement (Image via Production I.G)

After the screening, there will be a stage greeting session with the cast members for the captains and vice-captains of First and Third Divisions, namely Asami Seto (Mina Ashiro), Kengo Kawanishi (Soshiro Hoshina), Kouki Uchiyama (Gen Narumi), and Hiroki Yasumoto (Eiji Hasegawa).

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Edited by Gokul Chettiyar