Image: Kawakami Taiki, Fuse, Kodansha / Tensura Production Committee
AMBot | 06/19/2026 | Reading Time: 2 Min.
The production team of the fourth season of »That Time I Got Reincarnated as a Slime« (Japanese: »Tensei Shitara Slime Datta Ken«) released a second key visual, a second promo clip, and the new theme songs for the second cour starting on July 3, 2026, on June 19, 2026.
The new key art features, alongside Rimuru, for the first time the ancient demons officially appearing in the anime adaptation: Testarossa (voiced by Yumi Uchiyama), Ultima (Miyu Tomita), and Carrera (Yumi Hasegawa). In the foreground, Chloe, Granbell, and a mysterious figure reminiscent of Chloe are visible. The clip hints at the escalating plot surrounding the »Hero«.
For the second cour, Daoko performs the new opening »TACTIC«, produced by Giga and TeddyLoid. The singer describes the song as »high-energy and unique, fitting the dark and tense atmosphere of the fourth season.« The ending »Hymnal« is contributed by Azusa Tadokoro, who voices Chloe in the anime. She comments: »The song combines the character's strength and unwavering hope.« Both songs will be released digitally on July 4.
Additionally, the Blu-ray and DVD release of the second film »Tears of the Azure Sea« has been confirmed for September 25, 2026. The limited special edition includes, among other things, a booklet designed by Mitz Vah, ED illustration cards, a bonus disc with stage appearances, and an audio commentary track. The film will also be available exclusively for streaming on U-NEXT starting June 26.
The fourth season has been airing on Japanese television (NTV, BS11) since April 3, 2026, and is being shown in five interconnected cours. Naokatsu Tsuda is in charge of direction, with animation by Studio 8bit. The original work by Taiki Kawakami and Fuse is published by Kodansha in »Monthly Shonen Sirius«.
The new key art features, alongside Rimuru, for the first time the ancient demons officially appearing in the anime adaptation: Testarossa (voiced by Yumi Uchiyama), Ultima (Miyu Tomita), and Carrera (Yumi Hasegawa). In the foreground, Chloe, Granbell, and a mysterious figure reminiscent of Chloe are visible. The clip hints at the escalating plot surrounding the »Hero«.
For the second cour, Daoko performs the new opening »TACTIC«, produced by Giga and TeddyLoid. The singer describes the song as »high-energy and unique, fitting the dark and tense atmosphere of the fourth season.« The ending »Hymnal« is contributed by Azusa Tadokoro, who voices Chloe in the anime. She comments: »The song combines the character's strength and unwavering hope.« Both songs will be released digitally on July 4.
Additionally, the Blu-ray and DVD release of the second film »Tears of the Azure Sea« has been confirmed for September 25, 2026. The limited special edition includes, among other things, a booklet designed by Mitz Vah, ED illustration cards, a bonus disc with stage appearances, and an audio commentary track. The film will also be available exclusively for streaming on U-NEXT starting June 26.
The fourth season has been airing on Japanese television (NTV, BS11) since April 3, 2026, and is being shown in five interconnected cours. Naokatsu Tsuda is in charge of direction, with animation by Studio 8bit. The original work by Taiki Kawakami and Fuse is published by Kodansha in »Monthly Shonen Sirius«.
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This article was originally published in German. It was translated with technical support and editorially reviewed before publication.
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