The That Time I Got Reincarnated as a Slime (転生したらスライムだった件, commonly known as Tensura) anime franchise is one of the most beloved isekai (異世界) series of the last decade. With a massive global fanbase, consistent quality in animation and storytelling, and a deep world rich in lore, Tensura has become a cornerstone of modern anime culture. And now — the next chapter is officially here. Season 4 is confirmed to premiere in April 2026 and will be a monumental production spanning five cours (parts), with an estimated 60+ episodes!
🔔 Official Announcement — A New Era Begins in April 2026
After the explosive conclusion of Season 3 in 2024, fans worldwide have been eagerly waiting for news about the next installment. In December 2025, the That Time I Got Reincarnated as a Slime official website and social media channels revealed the much-anticipated news:
➡️ Season 4 is confirmed to debut in April 2026 and will run for five cours — a massive undertaking compared to typical anime seasons.
📅 What Does Five Cours Mean?
In anime broadcasting, 1 cour generally equals about 12–13 episodes, or roughly one season (three months). With five cours, Tensura S4 is expected to encompass:
- 60+ episodes (estimated)
- A broadcasting run that spans more than a year
- The first two cours airing consecutively starting April 2026
➡️ This means Tensura S4 won’t be a short seasonal run — it’s shaped up like a mega project unlike anything before in the franchise.
This scale matches few other anime titles historically, and underlines just how expansive the story ahead is likely to be.
📍 Why Season 4 Is a Big Deal
For context, here’s how Tensura’s anime history looks:
- Season 1 — Aired in 2018
- Season 2 — Aired in 2021
- Season 3 — Aired in 2024
- Season 4 — Announced for 2026
Across these seasons, the anime has stayed true to the source material — the original light novel series by Fuse, later adapted into manga and multiple spin-offs — and cultivated millions of viewers around the world.
Now, with a five-cour plan, Tensura is gearing up for its most ambitious arc yet.
🎯 What Fans Can Expect: More Story, More Battles, More Worldbuilding
While exact plot details for Season 4 haven’t all been revealed yet, the fact that:
✨ It’s five cours long
✨ The first two cours begin April 2026
✨ It likely adapts significant portions of the ongoing manga/light novel canon
…suggests fans are in for an epic continuation of Rimuru’s journey.
Season 4 will likely cover major arcs and character developments that:
✅ Deepen political tensions across nations
✅ Expand character arcs for existing heroes and villains
✅ Introduce new threats and alliances
✅ Reveal untold lore behind the world’s magic systems, races, and histories
Given the expansive source material and recent narrative developments, Tensura S4 is poised to be one of the most content-rich seasons in anime history.
📌 What the Five Cours Might Cover
While the exact breakdown of story arcs for each cour isn’t officially published yet, five cours provide enough room to adapt several major segments of the source material, potentially including:
🔥 Continued conflicts with powerful foes
🔥 Lore expansions on ancient civilizations and magic
🔥 Character growth and internal struggles
🔥 High-stakes political drama between factions
Fans should prepare for continuous anime release stretches — uninterrupted storytelling with minimal breaks — something only a few long-running anime series have achieved.
🚀 What This Means for the Franchise’s Future
Tensura Season 4 isn’t just another season — it’s a milestone event:
📌 Five cours means higher production confidence from the studio.
📌 60+ episodes promise deep, immersive storytelling.
📌 It potentially sets new standards for how anime adapt long, complex source material.
This format suggests that the production committee, fans, and licensors expect Tensura to remain relevant, profitable, and sustainable for years to come — not just as an anime, but across manga, light novels, games, movies, and merchandise.
📍 What About the Animation Studio?
The anime adaptation of Tensura has been animated by Studio 8bit since its inception. While official staff announcements for Season 4 have not been fully released yet, it’s highly expected that 8bit will continue its role as the animation studio, considering their consistent work on past seasons and related projects.
Fans can reasonably anticipate high-quality animation, lush world visuals, and powerful action sequences — staples of the franchise since Season 1.
📖 What Story Arcs Might Season 4 Adapt?
With five massive cours and more than 60 episodes planned, Season 4 isn’t going to rush anything. Instead, it is expected to deliver one of the most faithful and deeply layered adaptations in Tensura history.
While the exact roadmap hasn’t been officially revealed, based on the structure of previous seasons and progression of the source material, we can expect Season 4 to dive into:
🔥 1️⃣ Aftermath & Political Power Expansion Arc
Season 3 ended by massively reshaping the world’s political and power balance. So Season 4 will likely begin by exploring:
- Rimuru consolidating his position as a dominant world power
- Tempest transforming from a nation into a full global superpower
- Political negotiations, alliances, and new rivalries
- Nations evaluating Rimuru’s threat level
- Internal development of Tempest — economy, culture, military reforms
This arc is all about world-building, diplomacy, leadership growth and preparing the foundation for bigger conflicts.
⚔️ 2️⃣ Rising Threats & Shadow Movements Arc
As Rimuru’s influence grows, enemies won’t simply sit and watch. Expect:
- Assassination attempts
- Secret organizations plotting against Tempest
- New antagonists stepping into the spotlight
- Conflicts rooted in fear, jealousy, and survival instincts of rival nations
This part will likely blend political intrigue with high-stakes action, keeping fans engaged with suspenseful storytelling while slowly escalating the tension.
👑 3️⃣ The Great Confrontation & Major War Arc
With such a huge episode count, Season 4 almost certainly leads to large-scale war arcs — one of Tensura’s strongest storytelling arenas.
Fans can anticipate:
- Massive battles involving multiple nations
- Legendary characters entering the battlefield
- Devastating magic confrontations
- Sacrifices, emotional turning points, and shocking reversals
This is where animation, soundtrack, directing, and emotional depth will combine to create unforgettable episodes.
🌌 4️⃣ World Lore Expansion & Ancient Mysteries
Tensura isn’t just about battles. Its world is full of cosmic entities, ancient secrets, and divine powers. With Season 4’s length:
- Hidden truths behind the world’s creation
- Deeper dive into gods, demon lords, and ultimate beings
- Expanding the mythological backbone of Tensura’s universe
Expect massive lore reveals, enriching both old fans and new viewers.
🎭 Characters to Watch in Season 4
Season 4 will give significant spotlight not only to Rimuru but to many supporting characters who will evolve dramatically.
Rimuru Tempest
- Further growth as a ruler, strategist, and god-tier entity
- Emotional and psychological maturity
- Balancing compassion with ruthless necessity
Benimaru, Shion, Shuna & Tempest Corps
Expect deeper focus on:
- Leadership development
- Stronger roles in battle strategy
- Emotional character arcs
- New powers and abilities
Veldora
Fans should prepare for:
- More screen time
- Role in major battles
- Comedic moments and badass action scenes
New & Returning Villains
Season 4 will bring:
- Intelligent strategic villains
- Overpowered supernatural threats
- Rivals who challenge Rimuru philosophically and morally
🎼 Animation Quality, Music & Production Expectations
Season 4 being five cours signals massive production commitment. Fans can expect:
- Consistent animation quality
- Stunning fight choreography
- Cinematic camera angles
- Emotionally powerful OSTs
- Strong voice acting performances
This season aims to deliver not just entertainment — but an experience.
📺 Broadcast & Streaming Expectations
While specific global streaming announcements will be revealed closer to release, fans can confidently expect:
- Worldwide streaming availability
- Likely simulcast timing given its popularity
- Regional platforms depending on licensing
Given Tensura’s previous seasons streamed globally with huge success, Season 4 is expected to follow the same strategy — possibly even bigger.
🌍 Why Season 4 Matters for the Anime World
Season 4 being five cours is not normal — it’s rare and historic in modern anime production.
This means:
- The anime industry recognizes Tensura as a long-term pillar franchise
- Massive investment in storytelling and production
- Confidence in sustained global fan interest
Tensura Season 4 could easily become one of the defining anime events of 2026 and beyond.
🎯 Themes to Expect in Season 4
Season 4 will likely explore powerful themes such as:
- Responsibility of leadership
- What true peace costs
- Power vs morality
- Friendship, loyalty & sacrifice
- Destiny vs choice
This season isn’t just about Rimuru winning battles — it’s about Rimuru evolving as a ruler, protector, and symbol of hope.
❓ Frequently Asked Questions (FAQ)
1️⃣ When will Tensura Season 4 release?
Season 4 is scheduled to begin airing in April 2026.
2️⃣ How many episodes will Season 4 have?
Season 4 is planned to run for five cours, meaning 60+ episodes.
3️⃣ Will the first two cours air together?
Yes, the first two cours will broadcast consecutively starting April 2026.
4️⃣ Which studio is animating Season 4?
While final details will be announced officially, it is highly expected that Studio 8bit continues production.
5️⃣ Will the story follow the light novel and manga?
Yes, Season 4 is expected to faithfully adapt major arcs from the source material — possibly more extensively than previous seasons.
📝 Final Thoughts — Tensura Season 4 Will Be Legendary
With five cours, over 60 episodes, and massive story arcs on the horizon, Tensura Season 4 isn’t just another anime season — it is shaping up to be one of the largest, most ambitious anime projects of the decade.
Fans can expect:
✔ Continuous storytelling
✔ Intense battles
✔ Deep emotional arcs
✔ Rich world-building
✔ Memorable character development
The wait until April 2026 may feel long, but based on what’s coming…
it’s going to be worth every second.
💬 What are you most excited to see in Tensura Season 4?
Let readers engage:
- Do you want more war?
- More Rimuru character depth?
- More lore?
- Favorite character moments?
Encourage discussion to boost blog engagement.
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