That Time I Got Reincarnated as a Slime Announces Season 4 Part 2 Premiere Date and Clayman Revenge Spin-Off Anime Adaptation
The expansive fantasy universe of the modern isekai titan That Time I Got Reincarnated as a Slime has expanded its horizon even further following major announcements made during the broadcast of the fourth season’s grand finale. Fans of the beloved franchise, commonly abbreviated as Tensura, received a dual wave of updates detailing the future of Rimuru Tempest and his allies. The final moments of the 24th and concluding episode of the fourth television anime season delivered a double feature of news: the official premiere window for the continuation of the main storyline, alongside an unexpected and highly anticipated television adaptation of a fan-favorite villain-centric spin-off manga.
The announcements were coordinated through a special collaboration video released by the production committee, capturing the attention of the global anime community. As the franchise continues to maintain its stronghold as one of the most commercially successful and widely discussed properties in the isekai genre, these newly confirmed release schedules provide a concrete timeline for what viewers can expect over the next few years.
Main Series Continuity: Season 4 Part 2 Launching in July 2027
The overarching narrative of Rimuru Tempest’s journey as a powerful slime turned demon lord is slated to return in the summer of 2027. Following the conclusion of the fourth season’s initial 24-episode run—which began airing on April 3 and was simulcast globally with multi-language subtitles and dubs via Crunchyroll—producers confirmed that the second part of the fourth season will officially premiere in July 2027.
The fourth season adapts the manga adaptation illustrated by Taiki Kawakami, which itself is based on the foundational light novel series authored by Fuse and illustrated by Mitz Vah. The continuation promises to maintain the intricate political machinations, expansive world-building, and high-stakes magical warfare that have come to define the franchise since its television debut. Studio 8bit, the primary animation house responsible for bringing the Tensura universe to the screen across multiple seasons, theatrical films, and original video animations (OVAs), remains at the helm of the production to ensure visual and narrative continuity.
Expanding the Universe: Clayman’s Revenge Anime Adaptation Set for April 2027
In a surprise revelation that has excited manga readers and franchise completionists alike, the official website and special video also announced a television anime adaptation of That Time I Got Reincarnated as a Slime: Clayman Revenge. Authored originally by Wataru Kajika, the spin-off manga offers a dramatic re-examination of one of the series’ most distinct antagonists.
The spin-off is scheduled to premiere ahead of the main series continuation, hitting television screens in April 2027. According to the narrative synopsis provided by publisher Kodansha, the plot begins after the harrowing events of the Walpurgis Festival, where the final screams of the Marionette Master signaled what was believed to be his definitive end. However, through the whims of fate or the broader design of the world, the theater of Clayman opens for one more performance, offering a second chance at destiny.
The production team assembled for Clayman Revenge brings together a blend of seasoned veterans from the Tensura universe and notable industry talent. Kentarou Sugimoto, recognized for his work as an episode director on the acclaimed sports anime Blue Lock, will direct the series. Series composition will be handled by Yuuji Haibara, who previously directed the franchise’s charming slice-of-life spin-off, The Slime Diaries. Character designs will be a collaborative effort between Asumi Hashimoto, known for sub-character design duties on The Irregular at Magic High School third season, and Hideki Sakai, who served as chief animation director for the second season of the main Tensura anime. Animation production will, fittingly, remain under the purview of Studio 8bit, ensuring that the aesthetic identity of the franchise remains intact. Furthermore, it has been confirmed that the primary voice cast members from the main television series will reprise their respective roles for the spin-off, maintaining seamless vocal continuity for returning characters.
Franchise Chronology and Production Milestones
To understand the magnitude of these announcements, it is helpful to examine the historical trajectory of the Tensura franchise across various media formats. The phenomenon began as an amateur web novel written by Fuse, serialized on the user-generated novel publishing website Shousetsuka ni Narou between February 2013 and October 2016. Recognizing its massive popularity, Micro Magazine acquired the rights and launched it as a commercial light novel series under their GC Novels imprint in May 2014, featuring artwork by Mitz Vah. The literary journey of the main light novel reached its conclusion with the publication of the 23rd and final volume in November 2025.
Parallel to the light novels, Taiki Kawakami launched the official manga adaptation in Kodansha’s Monthly Shounen Sirius magazine in March 2015. The manga has since grown into a massive commercial success, with its 32nd volume released in June 2025 and the 33rd volume slated for release in October 2025. The spin-off manga Clayman Revenge also finds its home in Monthly Shounen Sirius, having begun serialization in April 2022 and accumulating nine volumes by August 2025.
International audiences have enjoyed robust licensing support. Kodansha USA licensed Kawakami’s manga adaptation for English publication in October 2016, with the 29th volume arriving in March 2025 and the 30th volume scheduled for October 2025. Meanwhile, Yen Press licensed the original light novel series in English in April 2017, distributing the 22nd volume in February 2025. For the spin-off, Kodansha makes the English translation available digitally through its K Manga platform.
On the animation front, Studio 8bit has steadily built a comprehensive television catalog over the years:
- First Season: Aired for 24 episodes during the Fall 2018 anime season, establishing the foundational world and introducing Rimuru’s growing nation of monsters.
- The Slime Diaries: The franchise’s first television spin-off aired in Spring 2021, offering a lighter, slice-of-life perspective on the daily lives of the characters.
- Second Season: Broadcast across split cours in Winter 2021 and Summer 2021, featuring major geopolitical shifts and the escalation of Rimuru’s status to a True Demon Lord.
- Third Season: Aired for 24 continuous episodes in Spring 2024, focusing on complex economic and political maneuvering, paving the way for the recently concluded fourth season.
Analysis of Implications for the Industry and Fandom
The announcement of a dedicated anime adaptation for Clayman Revenge alongside the scheduling of Season 4 Part 2 reflects a strategic shift in how major anime production committees manage long-running fantasy IPs. Rather than relying solely on continuous runs of the main narrative—which risk production strain and potential pacing issues—studios are increasingly leveraging spin-off material to maintain fan engagement and brand visibility during production gaps.
For Studio 8bit, managing concurrent or closely scheduled projects within the same intellectual property demonstrates a high level of operational confidence and robust resource allocation. The inclusion of Clayman Revenge also highlights a growing appetite for villain redemption arcs and alternative perspectives within established fantasy narratives. Clayman, initially perceived as a straightforward secondary antagonist during the Walpurgis events, gains psychological depth and narrative agency through Kajika’s spin-off manga. Bringing this story to the screen allows the production team to experiment with darker, more introspective storytelling tones distinct from Rimuru’s largely optimistic nation-building escapades.
Furthermore, setting the release windows as far out as 2027 signals a commitment to quality control and sustainable production schedules. In an industry frequently criticized for tight deadlines and animator burnout, providing multi-year windows for upcoming projects allows studios like 8bit to maintain high visual standards across both high-action sequences in the main series and character-driven drama in the spin-off.
As the franchise moves toward its 2027 milestones, global fans can look forward to continuous content distribution through platforms like Crunchyroll and K Manga. With the light novel narrative fully concluded in print and the animated adaptations continuing to chart both primary and secondary paths through the lore, That Time I Got Reincarnated as a Slime solidifies its status as a defining pillar of modern fantasy animation.
