The official website for the TV anime adaptation of Tanba and Yuunagi’s The Insipid Prince’s Furtive Grab for The Throne light novel series confirmed the anime’s July 6 premiere alongside a new promotional video, teaser trailer, and theme songs. Dance-vocal group BUDDiiS performs the opening theme song “Script,” and idol group Kurawan performs the ending theme song “Suteki na Kanchigai” (A Wonderful Mistake).”
The Insipid Prince’s Furtive Grab for The Throne will premiere on July 6 on Tokyo MX at 8:57 p.m. JST, and the anime will also stream on ABEMA, d Anime Store, U-NEXT, and Anime Hōdai services in Japan starting July 6 at 9:30 p.m. JST.
The cast of the anime includes:
- Atsushi Tamaru as Eric Lakes Adler
- Ryōta Takeuchi as Gordon Lakes Adler
- Mitsuki Saiga as Zandora Lakes Adler
- Kazuhiko Inoue as Johannes Lakes Adler
- Yūma Uchida as Arnold Lakes Adler
- Kikunosuke Toya as Leonard Lakes Adler
- Manaka Iwami as Fine von Kleinert
- Maaya Uchida as Elna von Amsberg
- Kaede Hondo as Lynfia
- Yūki Kuwahara as Christa Lakes Adler
- Masahiko Tanaka as Sebastian
Yūji Yanase, known for his work on By the Grace of the Gods, is directing the anime at Maho Film. Kazuyuki Fudeyasu is handling the series scripts, while Kazuko Tadano is designing the characters.
Tanba launched The Insipid Prince’s Furtive Grab for The Throne novel on the Shōsetsuka ni Narō website on February 3, 2019. The 15th volume shipped on August 29, 2025. Amagai then launched the manga adaptation on Kadokawa’s Young Ace Up website, and Kadokawa published the ninth manga volume on November 10, 2025.
Kadokawa publishes both the light novel and manga adaptation and describes the series as follows:
Arnold, the seventh Imperial Prince of the Adrasia Empire, is called “THE INSIPID PRINCE” among people since his twin brother is genius and respected by all people. However, he has a secret identity -SILVER, one of the only five -SS-rank adventurers in the continent. When his younger brother Leo decides to aim for the throne, Arnold starts running things behind the scenes to support his brother. Unexpectedly the most beautiful lady becomes his assistant. The secret struggle of the strongest prince begins!
