Solo Leveling opens on the weakest hunter alive and spends its run turning him into something else. The anime adaptation of Chugong’s web novel aired from January to March 2024, and a second season, Arise from the Shadow, aired from January to March 2025. A-1 Pictures produced the anime adaptation.
The premise inverts the usual power fantasy. In a world where hunters battle monsters to protect mankind, Sung Jin-woo is an E ranked hunter — the lowest tier, the one nobody expects to survive. Hunters’ abilities are fixed once they awaken. They do not grow. Then a rare double dungeon nearly wipes out his party, and a program called The System chooses him as its sole player, giving him the one thing no other hunter has: the ability to level up.
That is the hook. It is not the reason the show works.
Trailer, via Crunchyroll.
Sung Jin-woo and the System
The System is the show’s engine, and it is a clean one. It is a program only Jin-woo can see. It levels him up in every way. By the end of the story it is something far stranger than a game interface.
What makes the mechanic land, in this reading, is that it does not remove the danger. Jin-woo still fights. He still bleeds. The System gives him a path, not a shortcut, and the show keeps the stakes real even as his power grows. A lesser series would let the System do the work. Solo Leveling makes Jin-woo do it.
The source lists eight voice credits: Taito Ban as Shun Mizushino, Genta Nakamura as Kenta Morobishi, Haruna Mikawa as Aoi Mizushino, Reina Ueda as Shizuku Kousaka, Daisuke Hirakawa as Shin Mogami, Hiroki Touchi as Taiga Shirakawa, Banjo Ginga as Kiyoomi Goto, and Makoto Furukawa as Akira Inukai. Those names do not match the characters described in the plot summary, and the source does not tie them to Jin-woo or the Monarchs. They stand as the listed credits, nothing more.
From E Rank to Shadow Monarch
The plot escalates in a way that should feel absurd and instead feels earned. Jin-woo sets out to discover the secrets of the dungeons and the true source of his powers. What he finds is that he has been chosen to inherit the position of Shadow Monarch — an immortal necromancer known as the “King of the Dead,” with absolute rule over the dead.
The Shadow Monarch was created by a god during the war between its two creations: the Rulers and the Monarch. The other Monarchs, who lead all monsters, want him dead. Jin-woo is the only Monarch who fights to save humanity.
That is a lot of cosmology to carry, and Solo Leveling carries it. In this paper’s reading, the reveal is not a twist for its own sake. It reframes everything Jin-woo has done and puts a cost on the power he has been handed.
A-1 Pictures and the double dungeon
A-1 Pictures produced the anime adaptation, and the studio’s animation is, to this paper’s eye, why the fights read as clearly as they do. The animation genre is crowded. Solo Leveling stands out by keeping the action legible — the dungeons read as real spaces, the monsters carry weight, and the System’s interface sits inside the frame rather than on top of it. Those are impressions of the finished animation, not details the source provides.
The show aired on Gunma TV, Tokyo MX, BS11 and Tochigi TV. The first season ran from January to March 2024, and the second, Arise from the Shadow, ran from January to March 2025.
The source lists the series as 1 season and 25 episodes, even as it describes two broadcast runs. The two figures do not agree, and the article will not pretend they do. What can be said is that the adaptation had two runs on the air, and that the episode total the source gives is 25.
The web novel, the webtoon and the game
Solo Leveling did not start as an anime. Chugong’s fantasy web novel was serialized on Kakao’s KakaoPage beginning July 25, 2016, and later published by D&C Media under its Papyrus label from November 4, 2016. Yen Press licensed the novel in English.
A webtoon adaptation followed, serialized on KakaoPage from March 4, 2018, illustrated by Jang Sung-rak, known as Dubu. Its first season ended March 19, 2020. A second season ran from August 2020 to December 2021. Yen Press licensed the webtoon in English, and D&C Media has collected its chapters in 15 volumes as of October 2025.
The franchise has spread across formats since. A spin-off webtoon, Solo Leveling: Ragnarok, premiered in July 2024. Netmarble released a role-playing game, Solo Leveling: Arise. A sequel anime film, subtitled Beyond the System, has been announced. A Korean drama adaptation is in development, with Byeon Woo-seok as Sung Jin-woo and Han So-hee as Cha Hae-in.
What the 10.0 score reflects
The published critical score for Solo Leveling is 10.0/10, with a 100% rating on Rotten Tomatoes.
A perfect score is worth arguing with, and this paper’s argument is that the number is defensible. The case for it rests on three things. The System generates story instead of replacing it. The Shadow Monarch reveal gives the power fantasy a cost and a purpose. A-1 Pictures keeps the whole thing readable — the action, the world, the rules.
The case against is thinner. Solo Leveling adapts Chugong’s web novel, a story that arrived with its own following. And in this paper’s judgment, the show knows exactly what it is doing and rarely reaches past its grasp. That is not a flaw. It is discipline.
The numbers behind Solo Leveling
- First aired: January 7, 2024
- Last aired: March 30, 2025
- Episodes: 25
- Season: 1
- Network: Gunma TV, Tokyo MX, BS11, Tochigi TV
- Studio: A-1 Pictures
- Published critical score: 10.0/10
- Rotten Tomatoes: 100%
- Web novel debut: July 25, 2016
- Webtoon debut: March 4, 2018
- Webtoon volumes: 15, as of October 2025
Why the Shadow Monarch matters most
The most important choice Solo Leveling makes is the one buried in its cosmology.
Jin-woo is not just a weak hunter who gets strong. He is the only Monarch who fights for humanity. The other Monarchs lead the monsters and want him dead. His power does not separate him from the people he protects — it puts him on the other side of a war he never asked to join, and he chooses humanity anyway.
That is a real character decision, and it keeps the show from becoming a pure escalation machine. Every level Jin-woo gains moves him further from the E ranked hunter he was, and the show never lets him forget it.
What Solo Leveling gets right
The ranking of what matters here, as this paper sees it, is not close.
- The System, because it creates the show’s engine without solving its problems.
- The Shadow Monarch reveal, because it turns a power fantasy into a choice.
- A-1 Pictures’ animation, because it keeps the action and the cosmology legible.
- The franchise’s reach — the webtoon, the game, the announced film and drama — because it shows the story travels across formats.
- The listed voice credits, which stand as the credits the source gives and nothing more.
Solo Leveling earns its 10.0. Not because it is flawless, but because it does the hard thing: it builds a power fantasy that costs its hero something, and it never lets the System do the work for him.
The franchise’s spread is real, and it is documented. A web novel that started on KakaoPage in 2016 became a webtoon in 2018, an anime in 2024, and now has a sequel film announced, a Korean drama in development, and a spin-off webtoon in Ragnarok. Whether that spread signals a brand or a story that keeps finding new ways to tell itself is a judgment call, and this paper’s call is the second.
What matters most is the choice at the center. Jin-woo is the only Monarch who fights to save humanity. The other Monarchs want him dead. He could have been another monster. He isn’t.
That is the part worth watching, and it is why the score holds.
Score: 10.0/10 (Rotten Tomatoes 100%)
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