Is After Ten Millennia in Hell Worth Reading? Review & Where to Read

Quick facts
Format	Manhwa, 154 chapters
Run	2022–present · ongoing
Community score	AniList 7.5 · MangaUpdates 7.5
Content	Violence, fan service
Where to read	Tapas — official

Overview

Oh Kangwoo has ruled Hell as its Demon King for ten thousand years, and he's had enough. All he wants is to go home to Earth -- not for conquest, not for revenge, just for the things he actually missed: a hot bowl of kimchi stew, a comfortable bed, a little peace and quiet. What he finds instead is a planet he barely recognizes. Dimensional gates have opened all over the world, monsters pour out of them, and "players" now make a living hunting inside them. Kangwoo's own powers are sealed on arrival, which means the former ruler of Hell has to start climbing back up from the bottom, one dungeon at a time.

What it does well

The premise works because of what it inverts. Most isekai and returnee manhwa build their hook around power -- getting it, proving it, using it to settle scores. This one gets more mileage out of what Kangwoo wants once he already has near-limitless strength: comfort, decent food, and to be left alone. That gap between his god-tier capability and his genuinely mundane priorities is where the comedy lives, and it's a sturdier joke than it sounds -- watching a demon king toy with an enemy so he can get back to dinner on time never really stops being funny.

Kangwoo himself is the reason the book works as well as it does. He's ruthless when it counts, but the writing treats most of his encounters as obstacles between him and something he actually cares about, which keeps him from tipping into either edgy anti-hero or empty power fantasy. The art backs that up with strong facial expressions that sell the humor as clearly as the action, and the pacing doesn't dawdle on the obligatory culture-shock beats before getting to what actually makes the premise sing.

Where it falls short

The plot surrounding that hook is the weak link. Once the opening chapters establish Kangwoo's situation, the story settles into a fairly generic mysterious-evil-organization threat, the kind of grandiose, ill-defined villain arc that several readers specifically call out as the series' least interesting stretch. It's competent, but it doesn't bring the same specificity that makes Kangwoo's food-and-comfort priorities so much fun.

The supporting cast has a similar problem: most of them exist in orbit around Kangwoo rather than as people with their own stakes, sorted roughly into "admires him" or "foolish enough to fight him." That extends into a running harem-adjacent joke where more than just the obvious love interest develops an obsessive attachment to him, played consistently for laughs -- it's the kind of humor that will land well for some readers and less well for others depending on taste. And as with other Tapas Action Fantasy originals, the official release runs on a paid-unlock model with a built-in hiatus week every four episodes, which means reading for free takes real patience.

Verdict

After Ten Millennia in Hell gets more out of a simple inversion -- an overpowered demon king who just wants comfort food and a good night's sleep -- than the familiar plot machinery around it really deserves. Kangwoo's personality and the comedic timing built around him are strong enough to carry a fairly thin, cliché-heavy story, and the art keeps pace throughout a long run. If you want an OP-protagonist manhwa where the jokes land as often as the punches, this is a solid pick, even if the villain arcs never quite catch up to the character work.