From Demon Slayer to Jujutsu Kaisen: Crafting Product Journeys with Heart and Intent
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Why Great PMs Must Be Great Creators
Great products aren’t made by accident. They’re designed with purpose, built on emotion and refined through feedback. Everything in Demon Slayer from the character arcs to the world building to the fan feedback loops mirrors how great product development actually works.
If you want to build something people obsess over you can’t just think in JIRA tickets and stakeholder updates.
You have to think like a creator.
Like a showrunner.
Like a mangaka.
Because Demon Slayer and Jujutsu Kaisen didn’t become global hits by optimizing for efficiency. They did it by building worlds worth believing in.
This is more than metaphor. It’s a playbook.
Case Study One: Demon Slayer — Risk, Emotion and Visual Power
From Near-Cancellation to Cultural Phenomenon
- Author Koyoharu Gotouge was one of the few female mangaka in Weekly Shonen Jump. She pitched Demon Slayer as a mix of horror and family drama. Editors almost rejected it due to its quiet tone and unconventional pacing.
- The manga’s first volume debuted in 2016 to tepid reception. Average weekly sales hovered around 50,000 copies.
The Anime Changed Everything
- Studio Ufotable took a huge creative risk. Instead of phoning it in with low-budget animation they crafted fight scenes like art installations.
- Episode 19 of the anime, “Hinokami,” blended traditional 2D art with CGI backgrounds, a full orchestral score and emotional voice acting. This one broke the internet!
- Manga sales exploded overnight from Liner Note Oricon sales data tracked Demon Slayer's trajectory: ~3 million cumulative copies in mid-2018, then explosive growth following the anime premiere — crossing 100 million by the end of 2020. The anime aired from April to September 2019. .
What Product Managers Should Note
- The product (manga) struggled until the experience changed (anime).
- Ufotable acted like a true partner, not a vendor. Your designers, engineers and marketers are co-creators.
- Emotional storytelling and visual identity became more powerful than traditional marketing.
Case Study Two: Jujutsu Kaisen — Iteration, Identity and Fan Momentum
From Failure to Foundation
- Creator Gege Akutami debuted with Tokyo Metropolitan Curse Technical School, a manga that flopped commercially. Instead of scrapping it, they used it as the canon foundation for Jujutsu Kaisen 0.
- When JJK launched in 2018, it started slow: ~58,000 volume sales in its first month.
MAPPA and the Modern Viewer
- Anime studio MAPPA took over the adaptation in 2020. They leaned into fast pacing, crisp animation and modern fight choreography.
- The moment Satoru Gojo removed his blindfold, TikTok and Instagram lit up with fan edits. That scene alone contributed to a Liner Note JJK volume sales tracked by Oricon went from roughly 200K/month pre-anime to over 1M/month by early 2021, driven heavily by the Gojo reveal in Episode 7 (aired Nov 2020) and the subsequent viral clip cycle on TikTok. .
Strategic Lessons
- JJK succeeded because it owned its identity: brutal, existential and Gen Z-ready.
- The team listened to fans: themes like trauma, grief and meaning became more prominent post-launch.
- The original failure wasn’t wasted. It became an intentional prequel and monetized asset.
What These Anime Teach Us About Product Creation
| Anime Phase | Product Management Parallel |
|---|---|
| Early manga chapters | MVP or pre-seed product |
| Flat sales | Weak early signals but sticky emotional core |
| Anime adaptation | Channel pivot / format refactor |
| Viral moments (ep 19/Gojo) | First “Aha” experience or product-market fit |
| Fandom + merch explosion | Community flywheel + monetization stack |
Product Lessons for the Creator-PM
- Build Emotion First: Great anime starts with stakes. Your product should too.
- Refactor, Don’t Abandon: Turn failed features into future wins (like JJK 0).
- Design for Moments: Find your episode 19. Engineer delight.
- Create a World, Not a Widget: A product is a tool. A great product is a universe.
- Treat Your Team Like Ufotable: Creative partners, not execution machines.
The Product Recipe: Anime-Style Product Building
- 01 Premise First — What core belief drives this product? For Tanjiro, it was 'protect Nezuko.' What's your user's core mission?
- 02 Conflict = Utility — Every challenge in anime exists to grow the character. Make every feature solve a real conflict.
- 03 Pacing Matters — Don't dump everything in v1. Arc your roadmap like a narrative.
- 04 Find Your Visual Hook — Just as anime lives and dies on animation style, your UX/UI should tell a story before a user clicks.
- 05 Fan Service = Community Listening — Know when to break the fourth wall and delight your users with unexpected joy.
Want to be a better product builder? Think like a storyteller. Ship like a showrunner. And build like a fan.
◆ Before you read on
What's the PM move here?
Think about your product — what's the one moment where a user stops and feels something?
You predicted:
Because the best products don’t just solve problems. They move people.
◆ Your Take
What's the one moment in your product where a user stops and feels something — and are you protecting it?
When you read this before, you wrote:
Your takeaway: