That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea
2026 Japanese animated fantasy film
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That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea (Japanese: 劇場版 転生したらスライムだった件 蒼海の涙編, Hepburn: Gekijōban Tensei Shitara Suraimu Datta Ken: Sōkai no Namida-hen) is a 2026 Japanese animated fantasy film based on the light novel series by Fuse. Produced by Eight Bit and distributed by Bandai Namco Filmworks, it is the second theatrical film in the franchise, following That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022).
- Yasuhito Kikuchi
- Toshizo Nemoto
| That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea | |
|---|---|
Theatrical release poster | |
| Kanji | 劇場版 転生したらスライムだった件 蒼海の涙編 |
| Revised Hepburn | Gekijōban Tensei Shitara Suraimu Datta Ken: Sōkai no Namida-hen |
| Directed by | Yasuhito Kikuchi |
| Screenplay by |
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| Story by | Fuse |
| Based on | |
| Starring | |
| Music by | Elements Garden (Hitoshi Fujima) |
Production company | |
| Distributed by |
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Release date |
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Running time | 105 minutes[1] |
| Country | Japan |
| Language | Japanese |
| Box office | $7.5 million[2] |
The film features an original story written by Fuse and acts as a bridge between the third and fourth seasons of the television series. It is scheduled for a theatrical release in Japan on February 27, 2026, with a global rollout by Crunchyroll through Sony Pictures Releasing starting in April 2026.[3]
Plot
In the underwater Kingdom of Kaien, a woman named Yura steals a magical flute called the Dragon's Fang and escapes from the kingdom.
A month after the conclusion of the Tempest Founder's Festival, Rimuru Tempest and his companions accept an invitation from Elmesia El-Ru Sarion, the Celestial Emperor of the Sorcerous Dynasty Thalion, for a vacation at a private resort. Rimuru also learns of recent nuclear magic attacks targeting Leon Cromwell's domain, who constantly deflects them, resulting in them hitting Kaien instead, though the kingdom survives thanks to a force field. Yura eventually arrives at the island and meets Gobta. The two fight off men led by Zodon, who was sent by Djeese, a minster from Kaien, to get the Dragon's Fang back. They manage to get away, but lose the flute in the process. After Zodon brings the Dragon's Fang to Djeese, he reveals his plan to awaken the mystical water dragon that protects the city to launch an attack on the surface world, using the flute to control it.
Rimuru and his friends meet Yura and learn about the ancient history of Kaien and the water dragon. Rimuru, along with half of his friends, set off to Kaien. Djeese and the water dragon ambush them along the way. During the fight, Djeese loses the flute, which Yura catches. Djeese is seemly eaten by the water dragon as it leaves. Yura heads back to Kaien to return the Dragon's Fang to its place while Rimuru, Shion, Ranga, and Gobta follow her. However, the flute breaks, causing the water dragon to disappear. Following a tour of the Kaien, Rimuru and his friends decide to stay for the night.
Djeese is revealed to have survived, but Zodon kills him, having been using him all along. Zodon then captures Yura and puts her in a trance, intending to marry her for his plan to conquer the world, revealing that Yura is a major part of the water dragon. The revived water dragon attacks the Resort Island and Kaien is brought to the surface. The dragon also summons clones of itself. As Rimuru and his friends fight the dragons, Gobta manages to free Yura from her trance. Rimuru eventually kills Zodon using a powerful attack from the sky.
The next day, Gobta confesses his love to Yura, but she reveals that she has no romantic interest in him at all before leaving, to Gobta's anger; the two remain friends though. Back in Kaien, Yura reveals that she doesn't just control the water dragon's core, she is the core herself who was reborn multiple times over the years and she dissolves into bubbles. Gobta hopes to see Yura again someday.
In the post credit scene, an egg washes to shore and the newborn baby water dragon hatches from it. Meanwhile, Diablo has defeated the primordial Jaune and learns that he works for Rimuru. Jaune takes an interest in Rimuru.
Voice cast
| Character | Japanese Voice Actor | English Voice Actor | Description |
|---|---|---|---|
| Rimuru Tempest | Miho Okasaki | Brittany Karbowski | The protagonist; a Demon Lord and founder of Tempest. |
| Raphael | Megumi Toyoguchi | Mallorie Rodak | Raphael is Rimuru's Unique Skill, a type of artificial intelligence that exists within their mind and serves as their personal advisor and assistant. |
| Yura | Saori Ōnishi | Allegra Clark | A priestess of the undersea kingdom of Kaien.[4] |
| Mio | Nao Kosaka | Natalie Van Sistine | A maid and bodyguard serving Yura.[4] |
| Yori | Kaho Fujishima | Marianne Bray | A maid and bodyguard serving Yura.[4] |
| Benimaru | Makoto Furukawa | Ricco Fajardo | General of the Tempest forces. |
| Shion | M.A.O. | Michelle Rojas | Rimuru's secretary and bodyguard. |
| Diablo | Takahiro Sakurai | Daman Mills | One of the Primordial Demons serving Rimuru. |
| Souei | Takuya Eguchi | Ian Sinclair | Rimuru's main spy and infiltrator. |
| Shuna | Sayaka Senbongi | Tia Ballard | A healer and ogre princess serving Rimuru. |
| Hakuro | Hōchū Ōtsuka | Charlie Campbell | An older ogre and genius swordsmaster serving Rimuru. |
| Gobta | Asuna Tomari | Ryan Reynolds | One of Rimuru's youngest and strongest hobgoblin servants. |
| Ranga | Chikahiro Kobayashi | Tyson Rinehart | Ranga is a dire wolf serving Rimuru. |
| Treyni | Rie Tanaka | Jamie Marchi | The leader of the dryads, the protectors of the Great Forest of Jura, Rimuru's domain. |
| Veldora | Tomoaki Maeno | Chris Rager | The great Storm Dragon and Rimuru's partner. |
| Ramiris | Anzu Haruno | Jad Saxton | A fairy and former Spirit Queen, as well as one of the oldest True Demon Lords. |
| Beretta | Ayako Kawasumi | Morgan Lauré | A golem created from the soul of a Greater Demon to serve Rimuru and Ramiris. |
| Elyun Grimwald | Akane Kumada | Natalie Hoover | An elf princess and adventurer Mage friend of Rimuru's. |
| Luminous Valentine | Lynn | Jill Harris | A Vampire True Demon Lord and leader of the Western Holy Empire. |
| Hinata Sakaguchi | Manami Numakura | Alexis Tipton | An Otherworlder and the greatest knight of the Western Holy Empire. |
| Milim Nava | Rina Hidaka | Kristen McGuire | A dragonoid and one of the strongest and most ancient True Demon Lords. |
| Frey | Sayaka Ohara | Lisa Ortiz | A Harpy known as the Sky Queen and a former Demon Lord. |
| Elmesia | Hisako Kanemoto | Amber Lee Connors | The Celestial Emperor of the Sorcerous Dynasty of Thalion. |
| Leon Cromwell | Jun Fukuyama | Christopher Wehkamp | A summoned Otherworlder and a former True Hero who became a Demon Lord. |
Production
The film was officially announced on September 27, 2024, following the finale of the anime's third season. Eight Bit returned for the animation, under the direction of Yasuhito Kikuchi. The production utilized advanced water-physics CGI to render the underwater kingdom of Kaien, a first for the franchise.[5]
Music
The film's soundtrack is composed by Hitoshi Fujima of Elements Garden.
Theme song
"Eutopia" by TRUE
Insert songs
"Soukoku" ("Conflict") by Saori Ōnishi
"Harmonics" by Stereo Dive Foundation ft. ASH
"Renai No" by ARCANA PROJECT[6]
Release
The film is scheduled to open in 380 theaters across Japan on February 27, 2026, including IMAX and 4D formats. A special commemorative CD single, "Soukai no Yurameki," will be released on February 28. International distribution rights are held by Crunchyroll, with a planned North American theatrical window of May–June 2026. Muse Asia will release the movie in Southeast Asia and India in 2026.[7]
