Top 11 Completed Japanese Action Novels in 2026

2026 Edition

Updated January 27, 2026

Specialized Lists

11 Novels

Completed Japanese action novels give you the full experience without the waiting. These finished stories deliver proper conclusions to their action arcs, which matters when you've invested in characters and conflicts. Japanese action tends toward character-focused narratives even within high-octane scenarios, with protagonists who develop beyond just getting stronger.

The completed status is valuable here. Action series can drag when authors don't know their endpoint, but these stories had destinations in mind. You get choreographed battles, power systems that make sense, and resolutions that feel earned. Some lean into fantasy elements, others stay grounded. All deliver on action promises.

Completed
1
TOP PICK
The Lazy King
4.5
(1.2K ratings)
Genre: action, comedy, fantasy
By the time I realized it, I had reincarnated into another world. I kept sleeping, and at some point I became a Demon Lord.
First Impressions
"The Lazy King" is definitely a web novel that sticks with you long after you've finished reading. With a solid 4.5/5 rating from over a thousand readers, it clearly has a special something that resonates. I went in expecting a lighthearted romp, but what I found was a surprisingly deep and thought-provoking story. Initially, the premise seemed straightforward: a reincarnated demon lord whose power grows the more he sleeps. The cover might give you the wrong idea, suggesting a more action-oriented story, but the reality is far more nuanced. The main character, Liege, embodies sloth, and much o...
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Completed
2
RUNNER UP
The Girl Who Ate a Death God
4.8
(812 ratings)
Genre: action, fantasy, mature
What happens when one eats Death? Personally, I don’t really know.
First Impressions
"The Girl Who Ate a Death God" is a dark fantasy war story that really sunk its teeth into me. It's not always a comfortable read, but it's a compelling one, following a unique protagonist through a brutal and unforgiving world. Initially, I was a little hesitant. The first few chapters felt somewhat dry, focusing heavily on military formations and the political landscape, which made it difficult to connect with the story. However, I'm glad I stuck with it, because as the story progressed, I found myself increasingly invested in Schera's journey and the world around her....
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Completed
3
HIGHLY RECOMMENDED
Kumo Desu ga, Nani ka?
4.4
(1.9K ratings)
Genre: action, adventure, comedy
The world where the Hero and the Demon King continue to oppose each other. The grand magic from the Hero and the Demon King cross over worlds and exploded in the classroom of a certain high school.
First Impressions
"Kumo Desu ga, Nani ka?" is a web novel that took me on quite the ride. It's a reincarnation story with a twist, throwing our protagonist into the body of a spider monster in a deadly labyrinth. While the initial premise might sound familiar, the execution is anything but typical. Initially, I was hooked by the unique perspective of a spider navigating a dangerous world. The early chapters focus heavily on survival, grinding, and skill acquisition. Some might find this part slow-paced, and even repetitive, but I found it quite entertaining, especially with the main character's internal monolog...
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Completed
4
EDITORS CHOICE
Akuyaku Reijo Ni Koi Wo Shite
4.4
(997 ratings)
Genre: action, drama, fantasy
When he regained consciousness he was already in another world. There was no meeting with a God, no cheat skills, just a sudden reincarnation.
First Impressions
Akuyaku Reijo Ni Koi Wo Shite (Falling in Love with the Villainess) is a web novel that took me on a rollercoaster. It's a story that clearly evokes strong feelings, both positive and negative, from its readers. While some found it to be a diamond in the rough, others felt it was a frustrating mess. I'm somewhere in the middle, appreciating its unique aspects while acknowledging its flaws. Initially, I was drawn in by the premise of a protagonist reincarnated into a world seemingly governed by otome game mechanics. The early chapters promised an intriguing story of loyalty, political intrigue,...
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Completed
5
EDITORS CHOICE
Apotheosis of a Demon – A Monster Evolution Story
4.5
(798 ratings)
Genre: action, adventure, drama
A back-to-basics(? ) monster evolution novel.
First Impressions
"Apotheosis of a Demon – A Monster Evolution Story" promised a unique take on the isekai genre, and after diving in, I can say it mostly delivers, though not without a few stumbles along the way. The story follows Shedy's journey from abused human to demon goddess, and it's a wild ride. I was immediately drawn in by the premise. A protagonist who isn't afraid to get her hands dirty and doesn't bother with "righteous" justifications? Sign me up! The initial chapters are compelling, and I found myself eager to see how Shedy would navigate this new, dangerous world....
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Completed
6
#6 PICK
Shini Yasui Kōshaku Reijō to Shichi-nin no Kikōshi
4.5
(638 ratings)
Genre: action, adventure, fantasy
On one spring evening when I was eight years old, I, Erica, Duke of Aurelia’s daughter, realized something. Huh, I have reincarnated into a fantasy world, haven’t I?
First Impressions
"Reincarnated as a villainess" stories are a dime a dozen, so I went into Shini Yasui Kōshaku Reijō to Shichi-nin no Kikōshi with a healthy dose of skepticism. However, I quickly found myself pulled in by the unique premise and the promise of more than just your typical otome game fare. The detailed world-building and hints of mystery piqued my interest from the start, and I was eager to see how Erica would navigate her perilous situation. The strongest aspect of this novel, in my opinion, is its world-building. The author has clearly put a lot of thought into the intricacies of the world, fro...
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Completed
7
#7 PICK
Kono Subarashii Sekai ni Shukufuku o!
4.5
(625 ratings)
Genre: action, adventure, comedy
Kazuma Satou is a shut in who loves games, and his life ended suddenly… appearing before him is a beautiful girl claiming to be a goddess. Kazuma, who was transported into another world, worked hard to earn a living!
First Impressions
"KonoSuba" has been on my radar for a while, and diving into this isekai comedy was quite the experience. It's definitely not your typical power-fantasy, and that's precisely where its charm lies. The novel gleefully subverts tropes, and I found myself chuckling at the sheer absurdity of the situations our protagonist, Kazuma, finds himself in. The premise itself is hilarious: a NEET dies a pathetic death and is offered a second chance in a fantasy world, with the option to bring one item or ability. In a moment of spite, he chooses the goddess Aqua, and that's where the real chaos begins. My ...
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Conclusion

Completed Japanese action is a smaller pool than ongoing series, but the quality tends higher because these stories reached natural endpoints. The 11 here represent strong finished works. Translation quality varies by title, so factor that into your choices.

Frequently Asked Questions

Our rankings consider multiple factors: reader ratings (40%), popularity and reading lists (25%), review quality (20%), and editorial assessment (15%). We update regularly to reflect new releases and changing reader preferences.

We update our rankings monthly to ensure they reflect the latest reader ratings and new novel releases.

How We Create Our 2026 Rankings

Our 2026 novel rankings are created through a comprehensive, data-driven process that combines quantitative metrics with qualitative editorial review. Here's how we ensure our rankings reflect the best novels available today.

Data Collection

We aggregate reading data, ratings, and engagement metrics from thousands of readers across multiple platforms, updated regularly throughout 2026.

Community Input

Reader ratings and reviews form the foundation of our rankings. We weight votes based on verified reading history to ensure authenticity.

Quality Scoring

Each novel receives a composite score based on average rating, vote count, reading list additions, and reader retention metrics.

Editorial Review

Our editorial team reviews top candidates for writing quality, translation accuracy, and overall reader experience.

Regular Updates

Rankings are refreshed quarterly to reflect new releases, updated ratings, and shifting reader preferences in 2026.

Transparency

We publish our methodology openly so readers understand exactly how novels earn their positions in our rankings.

Our 2026 Ranking Criteria

40%Reader Rating Score (weighted by vote count and recency)
25%Popularity Metrics (reading list additions, active readers)
20%Engagement Score (comments, reviews, recommendations)
15%Editorial Assessment (writing quality, translation, completeness)

Last updated: January 27, 2026 | Rankings reflect data collected through 2026

Ranked Novels

The Lazy King

First Impressions

The Girl Who Ate a Death God

First Impressions

Kumo Desu ga, Nani ka?

First Impressions

Akuyaku Reijo Ni Koi Wo Shite

First Impressions

Apotheosis of a Demon – A Monster Evolution Story

First Impressions