When Naoya Matsumoto dropped Kaiju No. 8, it immediately struck a chord with readers who were hungry for a different kind of shonen protagonist. Following Kafka Hibino—a thirty-something working-class guy on the monster cleanup crew who gets a second shot at joining the Kaiju Defense Force—the series balances explosive kaiju battles with genuine heart, workplace camaraderie, and high-octane transformation powers.

If you have caught up on Kafka's story and need another hit of giant monster defense, dark supernatural forces, or hard-working underdogs stepping up to save humanity, you do not have to look far. The modern manga landscape is packed with brilliant series that share its DNA, from dark urban fantasies to tactical military battles.

Here are 9 outstanding manga series to read next if you loved Kaiju No. 8, broken down by what makes them hit the exact same sweet spot.

Military Defense Squads vs. Giant Monsters

If your favorite part of Kaiju No. 8 is the tactical defense force structure, weapon loadouts, and human soldiers fighting titanic threats, start with these series.

1. Attack on Titan — Hajime Isayama

Before humanity was fighting kaiju in high-tech suits, they were swinging from cables behind massive stone walls to slay naked human-eating giants. In Attack on Titan 1, Eren Yeager vows to eradicate every Titan after his home is destroyed, joining the military's Survey Corps to fight back against impossible odds.

Much like Kafka Hibino, Eren gains the ability to transform into the very monsters humanity fears, forcing his fellow soldiers to weigh their trust against their survival instincts. If you want intense tactical combat, high-stakes military defense squads, and a dark mystery behind monster origins, this is an absolute essential read. Physical single volumes generally run under $15.

2. World Trigger / Chained Soldier — Takahiro

If you enjoy the structured unit squads, specialized military gear, and tactical defense aspect of Kaiju No. 8, Chained Soldier, Vol. 1: Volume 1 offers an action-heavy alternative centered on specialized defense units. Set in a world where portals open to alternate dimensions full of monsters, human military forces deploy anti-demon corps to hold the line.

The series features heavy combat suit dynamics and structured military hierarchies reminiscent of the Third Division. It carries a mature content rating due to explicit fanservice and graphic violence, making it best suited for older readers who want intense battle manga with a dark fantasy edge under $15.

Monster Transformations and Body Horror

Kafka turning into Kaiju No. 8 gives him incredible power, but also forces him to hide his monster identity from the very officers trained to kill his kind. These stories center on heroes merged with monsters.

3. Chainsaw Man — Tatsuki Fujimoto

If you want a protagonist who transforms into a terrifying creature to slice through otherworldly threats, look no further than Chainsaw Man, Vol. 1. Denji is a broke, desperate young man who fuses with his devil dog Pochita, gaining the ability to sprout chainsaws from his body and getting recruited into the Public Safety Devil Hunters.

Fujimoto’s masterpiece shares Kaiju No. 8's concept of an official government agency hunting down monstrous threats using devil-hybrid agents. However, it leans much further into dark humor, unpredictable plot turns, and visceral gore. It is an unforgettable ride available for under $15.

4. Jujutsu Kaisen — Gege Akutami

High schooler Yuji Itadori swallows a cursed finger to save his friends, becoming the host for the legendary King of Curses, Sukuna. In Jujutsu Kaisen 0 (and the main series starting in Volume 1), jujutsu sorcerers work within a clandestine system to eliminate deadly curses born from negative human emotion.

The dynamic between human organization and internal monster power will feel instantly familiar to Kaiju No. 8 fans. The combat system is incredibly stylish, the monster designs are unsettling, and the ensemble cast of sorcerers brings the same strong team dynamic as Kafka’s squadmates. Volumes are widely available for under $15.

5. Tokyo Ghoul — Sui Ishida

For readers who enjoy the secret-identity anxiety of Kafka hiding his kaiju form from his superior officers, Tokyo Ghoul, Vol. 1 dives headfirst into that conflict. Ken Kaneki survives a deadly attack by a ghoul, only to undergo a organ transplant that turns him into a half-ghoul who must consume human flesh to survive.

Kaneki has to navigate both human society and the brutal ghoul underworld while running from the CCG—a government agency dedicated to exterminating ghouls. It is darker and more psychological than Kaiju No. 8, offering graphic violence and compelling tragic horror under $20.

High-Octane Shonen Underdogs & Supernatural Action

Part of what makes Kaiju No. 8 so satisfying is watching an underdog push past their physical limits to stand alongside prodigies through sheer grit and power.

6. Chainsaw / Offbeat Battle: Dandadan — Yukinobu Tatsu

Created by Yukinobu Tatsu (a former assistant on Chainsaw Man), Dandadan, Vol. 1 is a explosive mix of kaiju, aliens, urban legends, and supernatural curses. When a girl who believes in ghosts and a boy who believes in aliens make a bet, they both discover that both forces are real—and terrifyingly dangerous.

Featuring giant monster battles, high-speed transformations, and incredible kinetic artwork, Dandadan shares the energetic, funny, and action-packed tone that makes Kaiju No. 8 such a fast read. You can pick up volumes for under $15.

7. My Hero Academia — Kohei Horikoshi

If you love the ambition of joining a prestige defense force and training alongside elite peers, My Hero Academia, Vol. 1 captures that exact spirit. Izuku Midoriya is born without superpowers in a world where almost everyone has them, but his unwavering desire to save others earns him the power of the world's top hero.

The hero agency hierarchies, squad tactics, and training arcs match the structural feel of the Kaiju Defense Force examinations. It is an inspiring, action-dense series that balances ensemble character growth with massive villain battles under $15.

8. Black Clover — Yuki Tabata

In a world where magic is everything, Asta is born without a single drop of magical ability. In Black Clover, Vol. 1: The Boy's Vow, Asta relies entirely on physical conditioning until he receives a rare five-leaf grimoire containing anti-magic swords, allowing him to join the Magic Knights.

Like Kafka, Asta starts at the absolute bottom of the organizational ladder and has to earn the respect of squad captains through relentless work and surprise power surges. It is pure, classic shonen energy available for under $15.

9. Gachiakuta — Kei Urana

For readers who appreciate the gritty cleanup-crew start of Kaiju No. 8 and want a fresh, modern battle series with stunning urban art, Gachiakuta 1 is an incredible pick. Rudo lives in a slum town below a wealthy sphere where garbage and criminals are thrown down into "The Abyss."

After being framed for murder and tossed into the pit, Rudo discovers that discarded trash mutates into giant monsters, and specific warriors can manifest powers from cherished objects. With its striking art style and underdog revenge plot, it offers a fresh take on monster hunting under $15.

How to Choose Your Next Manga After Kaiju No. 8

Still deciding which volume to put on your shelf next? Here is a quick cheat sheet based on what clicked most with you in Kaiju No. 8: