That Time I Got Reincarnated as a Slime Season 4 Part 3 is scheduled to premiere in July 2027, giving fans another chapter in Rimuru Tempest’s growing story. The announcement also came with a new promotional video, which revealed additional details about the upcoming anime.
The latest announcement confirmed that Takehito Koyasu will return as Clayman in That Time I Got Reincarnated as a Slime Season 4 Part 3. The franchise is also expanding with a new anime adaptation of Wataru Kajika’s spinoff manga, That Time I Got Reincarnated as a Slime: Clayman’s Revenge, which is scheduled to premiere in April 2027.
Quick Guide
| Detail | Information |
|---|---|
| Anime | That Time I Got Reincarnated as a Slime Season 4 |
| Part 3 Release | July 2027 |
| Spinoff Anime | Clayman’s Revenge |
| Spinoff Release | April 2027 |
| Studio | 8-Bit |
| Main Character | Rimuru Tempest |
| Rimuru’s Voice Actor | Miho Okasaki |
| Clayman’s Voice Actor | Takehito Koyasu |
| Streaming | Crunchyroll |
| Season 4 Format | Reported to span five cours / 60 episodes |
That Time I Got Reincarnated as a Slime Season 4 Part 3 Release Date
The third part of That Time I Got Reincarnated as a Slime Season 4 is scheduled to premiere in July 2027.
The announcement was accompanied by a new promotional video that highlighted the next stage of the story and confirmed the return of Takehito Koyasu as Clayman.
The fourth season is expected to contain 60 episodes across five cours, making it one of the franchise’s larger anime installments. The first two parts are available to stream on Crunchyroll with English subtitles and an English dub.
Clayman Returns in Season 4 Part 3
One of the major casting announcements is the return of Takehito Koyasu as Clayman.
Clayman is an important figure in the That Time I Got Reincarnated as a Slime storyline, and his return adds another connection to the franchise’s earlier conflicts.
Fans will also get a separate opportunity to revisit Clayman through the upcoming Clayman’s Revenge anime.
Clayman’s Revenge Anime Release Date
Wataru Kajika’s That Time I Got Reincarnated as a Slime: Clayman’s Revenge spinoff manga is receiving a new anime adaptation.
The spinoff is currently scheduled to premiere in April 2027, ahead of That Time I Got Reincarnated as a Slime Season 4 Part 3.
Kentarō Sugimoto is directing the spinoff at 8-Bit. Yūji Haibara is handling series composition, while Asumi Hashimoto and Hideki Sakai are working on character designs.
Season 4 Story Overview
The fourth season continues Rimuru Tempest’s efforts to build a stronger relationship between humans and monsters.
As Tempest continues to develop, Granville Rozzo and his granddaughter, Maribel Rozzo, become involved in a conflict with Demon Lord Rimuru. Their approach to protecting humanity puts them at odds with Rimuru’s vision for the future.
Elsewhere, Demon Lord Leon continues pursuing his own objectives in El Dorado.
The season also moves toward the awakening of a new Hero, setting up another important development for the story.
That Time I Got Reincarnated as a Slime Season 4 Cast
Miho Okasaki returns as Rimuru Tempest.
The announced cast also includes:
- Anzu Haruno as Ramiris
- Asuna Tomari as Gobta
- Chikahiro Kobayashi as Ranga
- Daisuke Ono as Granbell Rosso
- Hōchū Ōtsuka as Hakurō
- Inori Minase as Mariabell Rosso
- Kanehira Yamamoto as Rigurd
- Lynn as Luminus Valentine
- M.A.O as Shion
- Makoto Furukawa as Benimaru
- Manami Numakura as Hinata Sakaguchi
- Megumi Toyoguchi as Raphael
- Natsuki Hanae as Yuuki Kagurazaka
- Rina Hidaka as Milim Nava
- Sayaka Senbongi as Shuna
- Takahiro Sakurai as Diablo
- Takuya Eguchi as Sōei
- Tomoaki Maeno as Veldora
- Yoshitsugu Matsuoka as Masayuki
- Yutaka Aoyama as Gard Mjöllmile
- Takehito Koyasu as Clayman
Season 4 Staff
Naokatsu Tsuda is directing the main anime at 8-Bit. Hitomi Ogawa is responsible for series composition, while R.O.N is composing the music.
Other announced staff members include:
- Character Design: Ryōma Ebata
- Art Director: Ayumi Satō
- Chief Animation Directors: Hideki Yamazaki, Masayori Komine, Tomoko Itō
- Sound Director: Jin Aketagawa
- CGI Director: Hironori Morino
- Director of Photography: Hiroshi Satō
For the Clayman’s Revenge spinoff, Kentarō Sugimoto is directing at 8-Bit, with Yūji Haibara overseeing the series scripts. Asumi Hashimoto and Hideki Sakai are credited for character design.
Season 4 Opening and Ending Theme Songs
The fourth season features music from Eir Aoi and CiON.
Eir Aoi performs the opening theme “Esoragoto (Unrealistic)”, while CiON performs the ending theme “Katsubō (Craving).”
The songs are expected to accompany the continuing story as Rimuru and the residents of Tempest face new developments.
Where to Watch That Time I Got Reincarnated as a Slime Season 4
The first two parts of That Time I Got Reincarnated as a Slime Season 4 are streaming on Crunchyroll, with both English-subtitled and English-dubbed options available.
Availability can vary by region, so viewers should check their local Crunchyroll catalog for the latest streaming information.
What to Expect From Season 4 Part 3
With Part 3 scheduled for July 2027, the story is set to continue exploring Rimuru’s expanding influence, Tempest’s relationships with other powers, and the conflicts surrounding humans, monsters, Demon Lords, and Heroes.
The return of Clayman is also notable because the character connects the upcoming season with the franchise’s earlier events. Meanwhile, the Clayman’s Revenge anime gives the character a separate spotlight before Season 4 Part 3 arrives.
More information about the exact episode count, broadcast schedule, additional cast members, and streaming availability may be announced as the July 2027 premiere approaches.
Final Takeaway
That Time I Got Reincarnated as a Slime Season 4 Part 3 is currently scheduled for July 2027, while the Clayman’s Revenge spinoff anime is scheduled for April 2027. Takehito Koyasu’s return as Clayman is among the key casting announcements, while Rimuru Tempest remains at the center of the main series.
Fans can expect more official details about the upcoming episodes and release schedule as the production moves closer to its 2027 premieres.