If you’ve been enjoying the intense kaiju battles in Kaiju no 8, buckle up because episode 8 just introduced a monstrous new threat, Kaiju no 10.

This colossal flying kaiju isn’t just another mindless beast — it craves combat against worthy opponents, setting the stage for the action-packed Raid on Tachikawa Base arc.

Kaiju no 8 supporting characters Iharu Furuhashi and Haruichi Izumo seen in episode 3 of season 1 participating in the final Defense Force test
Credit: Toho Animation, Shueisha, Production I.G, Naoya Matsumoto
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This flying monster will push the Third Division of the Japan Anti-Kaiju Defense Force (JAKDF) to its limits, so prepare for a clash of epic proportions.

We’re going to delve into the manga’s events to get a better sense of just how powerful Kaiju no 10 truly is.

Warning: Spoilers for those who haven’t read the manga.

Who is Kaiju no 10 in Kaiju no 8?

Strongest Kaiju in Kaiju No 8, Kaiju No 10 prototype hybrid Kaiju with weaponized tail
Credit: Naoya Matsumoto, Shueisha

At the end of episode 8, the monstrous cliffhanger introduced a formidable new Kaiju: Kaiju no 10.

This towering humanoid beast, first appearing in chapter 23 of the manga, boasted a menacing appearance with red, scale-like armor, sharp spikes on its back and tail, and a prominent horn reminiscent of a rhinoceros beetle.

Emerging as a creation of the monstrous Kaiju no 9, K10 is a ruthless and confident leader. It commands a pack of pterosaur-like Kaiju, known for their solitary nature, showcasing a compelling leadership dynamic.

Kaiju no 8 supporting characters Soshiro Hoshina and Konomi Okonogi seen in episode 3 of season 1 viewing all the Defense Force applicants
Credit: Toho Animation, Shueisha, Production I.G, Naoya Matsumoto
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A relentless force, K10 exudes an aura of intimidation. Its actions in the field are driven by a singular purpose, pushing it to its limits to achieve its objective.

The Third Division’s valiant efforts didn’t completely eradicate K10. Though severely damaged, its core and spine remained intact.

In a shocking turn of events, Izumo Tech, a prominent scientific organization, managed to weaponize the fallen Kaiju. K10 was transformed into a Numbers Weapon, a powerful combat suit piloted by a JAKDF member.

Kaiju no 8 manga characters Kafka Hibino, Soshiro Hoshina, and Mina Ashiro seen in the ONE Esports featured image for the 'Where to read Kaiju no 8 manga' article
Credit: Toho Animation, Shueisha, Production I.G, Naoya Matsumoto
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This dark-grey, scaly suit retains some of K10’s signature features: a long, mechanical tail, the iconic red cross-shaped eye, and pulsing green energy lines coursing through its arms and tail.

According to the official Kaiju no 8 X account (formerly Twitter), Kenta Miyake, a veteran Japanese voice actor known for his roles as All Might in My Hero Academia, Mike Zacharias in Attack on Titan, and Takenori Akagi in The First Slam Dunk movie, voices this Kaiju.

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