
Is I Was the Final Boss Worth Reading? Review & Where to Read
Baphomet losing every advantage he used to have is more interesting than watching him win, and that's the smartest choice this story makes.
Spoiler-light · Honestly rated
Every review labels its spoiler level, separates art from writing, and ends with an official way to read.
We use the whole 1–10 scale and judge each title against the best version of what it is trying to be — a comedy on how funny it is, a thriller on its tension — not against some other genre. As a rough guide: 9+ is all-time great, 8 excellent, 7 a solid recommendation with caveats, 5–6 mixed or average. A 7 is a genuine yes, not a knock. The “Community score” in each review is the crowd rating from AniList, MAL, and MangaUpdates, shown next to ours for comparison.

The high-school-versus-black-ops split is the whole appeal, and it mostly delivers, even though the school half occasionally drags.

Eighty years of hell-forged experience packed into a lead who never has to fake his competence once the story moves to Earth.

Genuinely funny without ever losing the martial-arts spectacle that makes the genre work — that combination is rarer than it should be.

Underneath the isekai power fantasy is a redemption arc that's more interested in the redemption than the fantasy.

One of the more thematically serious action manhwa out there, and it actually finishes what it starts.

The premise alone — a sealed murim demon lord waking up in an alien tournament arc — is worth the price of admission on novelty alone.

Doesn't reinvent the underdog-hunter formula, but it runs the formula with real momentum in its early chapters.

Two competent leads who already know the game inside out — that alone puts it a tier above most isekai-into-a-game stories.

Short, mean, and grounded — this is revenge fiction that remembers to make the cost of revenge feel real.

Everything goes right for Theo a little too easily, but watching a grimoire eat its way through the competition never stops being fun to look at.