TV Anime "The Strongest Dull Prince's Secret Battle for the Throne" Reveals Key Visual and Theme Songs

A supremely powerful SS-rank prince who feigns incompetence quietly manipulates a war of succession he never wanted to win. "The Strongest Dull Prince's Secret Battle for the Throne," an isekai court fantasy, will air from July 2026. A key visual and second PV have been released, along with the theme song lineup.

Based on the novels by Tanba with character designs by Yunagi, the series has surpassed 1.8 million copies in circulation. Its appeal lies in the cerebral intrigue of protagonist Arnolt — who has no interest in the throne but no wish to die either — playing the role of a worthless "dull prince" while scheming to place his brother Leonhart on the throne. Animation production is by MAHO FILM.

[Cast]
Arnolt Reks Adler: Yuma Uchida
Leonhart Reks Adler: Kikunosuke Toya
Fine: Manaka Iwami
Erna: Maaya Uchida
Linfia: Kaede Hondo

[Theme Songs]
Opening: "Script" by BUDDiiS
Ending: "Suteki na Kanchigai" by Kurawan

[Broadcast]
Airing from July 2026 on TOKYO MX, BS Fuji and more. Streaming on ABEMA, dAnime Store, U-NEXT and others.

Official site: https://degarashiouji.com/

©Tanba, Yunagi / KADOKAWA / Degarashi Production Committee