Is Takopi's Original Sin Worth Reading? Review & Where to Read

Quick Answer
Yes, if you're ready for a heavy story. Takopi's Original Sin uses a cute mascot setup to build one of the more devastating short manga of the last few years, and it earns the gut-punch even at only two volumes.
Quick Verdict
“Cute-mascot premise, then one of the most devastating short manga in recent years — it moves fast, but every gut-punch is earned.”
Best for: Readers who want a short, emotionally heavy drama that doesn't pad itself out.
Not for: Readers who want the cheerful mascot tone to stick around, or who'd prefer to skip a story built around bullying and suicide.
- Type
- Manga
- Genres
- Drama, Supernatural
- Status
- Completed
- This review
- Minor Spoilers
- Author
- Taizan5
- Publisher
- Shueisha / VIZ Media
- Platform
- VIZ Shonen Jump
| Quick facts | |
|---|---|
| Format | Manga (shōnen), 16 chapters, 2 volumes |
| Run | 2021–2022 · completed |
| Community score | AniList 7.7 |
| Content | Bullying, suicide, child neglect |
| Where to read | VIZ Shonen Jump — official |
Overview
Takopi's Original Sin looks like a cute alien-mascot manga for about ten pages, and then it isn't. Takopi is a squid-like alien whose entire mission is to spread happiness with gadgets that look like they're straight out of a magical-girl show. He lands in the yard of Shizuka, a quiet elementary schooler, and quickly realizes her life is nothing like the happy world he assumed everyone lived in. When his gadgets can't fix what's actually wrong, the story turns into something much heavier: a time-loop story about bullying, family neglect, and how much a well-meaning outsider can actually change.
What it does well
The bait-and-switch structure is the point, not a gimmick. Taizan5 uses the cutesy mascot-adventure setup to build a specific set of expectations, then uses that same innocence to make the turn hit harder once it comes. Takopi's total lack of understanding of how cruelty actually works becomes the emotional engine of the story — he keeps trying 'nice' solutions to problems that don't have nice solutions, and watching him fail to fix things with kindness alone is what makes the story land as tragedy instead of just misery. For a two-volume story, it earns an enormous amount of character work in a short space; Shizuka and the kids around her all get real, specific reasons for how they act, not just sad-backstory shorthand. Even Takopi himself, who could have stayed a one-joke mascot, ends up being the story's real emotional center once you understand what he actually represents.
Where it falls short
The pacing is fast almost to a fault. Because the whole thing runs only two volumes, some of the darker turns happen in quick succession without a lot of room to breathe, and a couple of side-character reveals land more like plot mechanics than earned character moments. A couple of the adult characters are drawn in fairly broad strokes -- useful for how quickly the story needs to establish who is and isn't safe for Shizuka, but a little flatter than the kids around her, who get much more nuance. The time-loop device, while it's used well thematically, asks you to accept some fuzzy rules about how and why it works, and the story doesn't spend much time explaining them. If you're specifically hoping the cute-mascot tone from the first chapter sticks around, the tonal whiplash might feel like a bait-and-switch in the bad sense rather than the good one.
Verdict
This is a short, focused, genuinely upsetting manga that uses a disarming premise to make a real point about bullying and the limits of good intentions. It doesn't waste any of its two volumes, and it trusts you to sit with an ending that doesn't tie everything up neatly. If you go in knowing what it's about and you're in the right headspace for it, it's one of the more striking short manga of the last few years.
Strengths & Weaknesses
Strengths
- The bait-and-switch structure is the point, not a gimmick — the cute opening genuinely earns the tonal turn instead of just shocking you for its own sake.
- Takopi's total misunderstanding of how cruelty works becomes the emotional engine of the story, since his 'nice' solutions keep failing in believable ways.
- For only two volumes, it packs in real character work — the kids around Shizuka all get specific, human reasons for how they act.
- It treats a heavy subject seriously without turning it into misery for its own sake.
Weaknesses
- The pacing is fast almost to a fault; some of the darker turns land in quick succession without much room to breathe.
- The time-loop device works thematically but runs on fuzzy rules the story doesn't spend much time explaining.
- A couple of side-character reveals land more like plot mechanics than fully earned character moments.
Similar Titles
Another manga that treats childhood bullying as a real, lasting wound instead of a plot device.
Similar willingness to let a story about childhood get genuinely dark and psychological.
A different kind of gut-punch, but the same short, emotionally direct approach to a heavy subject.
Where to Read Officially
| Platform | Format | Pricing | Region notes | Link |
|---|---|---|---|---|
| VIZ Shonen Jump | Digital chapters & volumes | Free + Paid | Region availability varies | Open |
Frequently Asked Questions
How long is Takopi's Original Sin?
It's short by design — two volumes collecting a run that originally serialized on Shonen Jump+ from December 2021 to March 2022. You can read the whole thing in one sitting.
Is this appropriate for kids, since the main characters are children?
No — despite the cute mascot character and child protagonists, the story deals directly with bullying, neglect, and suicide, and is aimed at an older readership.
Is there more Takopi story planned?
The original manga is a complete, self-contained story. An anime adaptation has also been produced, covering the same complete plot.


