When I was a kid, I used to fantasize about a door. Not a metaphor — an actual door, somewhere in my school or my house, that would open onto a place where the version of me that got picked on every day simply didn't exist. I never found it. I just kept reading manga instead, which is its own kind of door, I guess.

So when I opened the first volume of I Got a Cheat Skill in Another World and watched Yuuya Tenjou — abandoned by his family, beaten on by classmates, alone except for a grandfather who'd just died — smash a mirror in grief and find a hidden door behind it, something in my chest went tight. I know this is supposed to be a goofy power-fantasy isekai. And it mostly is. But that opening got me. It got me good.

Quick Take

A dual-world isekai where the power Yuuya gains in the other world physically changes him in the real one — two narrative tracks running at the same time
The bullying-and-abandonment backstory is sincere enough to give the wish-fulfillment some actual weight
Ongoing from Yen Press (6 English volumes); rated T (Teen) — fantasy violence and a bullying backstory, nothing graphic

Who Is This Manga For?

Readers who want isekai with a dual-world structure — power earned in fantasy, spent in reality
Anyone who finds the "abandoned nobody becomes someone" fantasy genuinely cathartic rather than cringe
Fans of overpowered-protagonist stories that bother to give the protagonist a reason to be broken
Readers who like a fluffy harem layer on top of their adventure

Story Overview

Yuuya Tenjou is fifteen and has been bullied as long as he can remember — supposedly just for being unattractive. His own parents and siblings can't stand him. The one person who ever understood him, his grandfather, has just died and left him his house, and Yuuya's family shoves him into it mostly to be rid of him.

One night, hollowed out by all of it, he lashes out and smashes a mirror — and behind it finds a hidden room. Inside is everything his grandfather had quietly collected from around the world: strange items, and a door that opens onto another world. On the far side sits the house of a Sage. There Yuuya starts absorbing combat skills, picks up a spear called the Zetsou, and fights the monsters outside. His pitiful stats explode upward. Then one night he's hit by an agonizing pain in his sleep — and wakes up the next morning transformed, unrecognizably handsome.

From there the series runs two tracks at once. In the other world, Argena, he tames a wounded beast, trains under a celestial rabbit, and gets tangled up with royalty. In the real world, his new body — and the confidence that slowly trails behind it — pulls him out of invisibility and into a new school and a new life. The turning point that bridges the two is small and human: following his grandfather's last wishes, he physically steps in to protect a girl being harassed by delinquents outside a convenience store.

Characters

Yuuya Tenjou — The whole thing rests on him, and the manga is smart enough to start from real pain rather than manufactured inconvenience. His before-self isn't a punchline; the abandonment and bullying are played straight. His arc isn't really "gets strong" — it's that the strength arrives instantly via the cheat, and the self-esteem takes the entire series to catch up. He keeps flinching at kindness like he expects the floor to drop out.

Kaori Hojo — The girl he saves from delinquents at the convenience store. She notices the change in him, and it's Kaori who pulls him toward Ousei Academy, recruiting him into a normal-school life he never thought he'd get. She becomes his anchor on the real-world side and, like several characters, ends up falling for him.

Night — A Black Fenrir cub Yuuya finds in the other world, hurt and cornered by monsters. He saves it, it bonds to him and gets tamed, and he names it Night. It becomes the most consistently endearing presence in the cast — the loyal partner that the loneliness-shaped hole in Yuuya's life needed.

Lexia, Luna, and Usagi — The Argena-side cast. Princess Lexia von Arselia attaches herself to Yuuya after he rescues her; Luna, an assassin originally sent to kill her, switches sides and becomes her bodyguard; and Usagi, a "Divine Rabbit," trains Yuuya in actual technique rather than just letting his numbers do the work.

Art Style

Minatogawa's art carries the two settings cleanly — monster combat and magic effects on the Argena side, ordinary school panels on the Earth side — and, crucially, handles Yuuya's physical transformation without turning his "before" into a cruel joke. The contrast is drawn as a real change rather than a mean-spirited gag, which matters for a story whose whole emotional core is a kid being seen differently.

What I Love About It

There's a single image that does the heavy lifting for the entire premise, and it's the broken mirror. Yuuya, at his lowest, smashes the one object whose whole job is to show him the face he's been told to hate — and that's what reveals the hidden door. The thing he can't stand looking at is literally what's standing between him and the life he's about to get. I don't know if the author meant it that pointedly, but as someone who spent years avoiding mirrors myself, it landed like a gut punch.

What keeps me reading past the first volume is that the manga refuses to make Yuuya's old self the villain. So many power fantasies treat the protagonist's "before" as something to sneer at — fat, weak, pathetic, deserved-it. This one doesn't. The abandonment is presented as a wrong done to him, not a flaw in him, and the transformation reads as the universe finally correcting an injustice rather than a glow-up reward. That sincerity is the difference between a power fantasy I roll my eyes at and one I actually root for.

Memorable Scene ⚠️ Spoiler Warning

The morning after his stats spike, Yuuya is woken by a searing, body-deep pain — and then sees himself in the mirror and doesn't recognize the person looking back. It's the inverse of the opening: the mirror that he shattered out of self-hatred now shows him a face he can't reconcile with who he's always believed he is. The manga lets the moment sit in confusion rather than triumph. He isn't instantly happy. He's disoriented, almost suspicious, like the change is happening to him rather than for him — and that small hesitation is the most honest beat in the whole series.

What English-Speaking Fans Say

Western reviews are genuinely split, and I think that's fair. Readers who connect with the abused-kid premise call it more emotionally grounded than the usual overpowered isekai. The common criticism is the opposite side of the same coin: the antagonists are written as cartoonishly cruel, the supporting cast can feel one-dimensional, and the harem element — girl after girl falling for Yuuya — strains belief and leans on his low self-esteem as its engine. The anime adaptation brought a wave of new readers to the manga.

Pros & Cons

Pros

The dual-world structure gives you two distinct stories at once
The bullying-and-abandonment backstory gives the wish-fulfillment real emotional grounding
Night the Black Fenrir is a genuinely lovable companion
The art handles the transformation with dignity instead of mockery

Cons

The antagonists are written as flatly, absurdly cruel
The overpowered cheat kills most of the tension in the fantasy fights
The harem keeps expanding on thin motivation
The wish-fulfillment is the whole point — if that's not your thing, nothing here will convert you. That's either a flaw or a feature depending on you.

Is I Got a Cheat Skill in Another World Worth Reading?

If you want a cathartic dual-world power fantasy with a sincere broken core and a great animal companion, yes — read at least the first volume. If you need tense fights, layered villains, and earned romance, this isn't the one. It's comfort food with a real wound underneath it.

Similar Manga

Title	Its Approach	How Cheat Skill Differs
Arifureta	Bullied-then-overpowered isekai, much darker and crueler in tone	Cheat Skill stays warm and slice-of-life, keeping a foot in the real world
That Time I Got Reincarnated as a Slime	Overpowered protagonist building a world with genuine warmth	Cheat Skill is about one boy's self-worth, not nation-building
The Misfit of Demon King Academy	Overpowered protagonist dominating a fantasy school	Cheat Skill splits its time between a fantasy world and a real-world high school

Official English Translation Status

Yen Press publishes the ongoing English manga, with 6 volumes currently available (7 in Japan). Yen Press also releases the original light novels in English.

Where to Buy

Read the first volume. If it doesn't hook you, put it down. It'll hook you.

Start with Volume 1 →

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