The Seven Knights of the Marronnier Kingdom arrives with a same-day English dub
Amazon Prime Video has added The Seven Knights of the Marronnier Kingdom with English subtitles and a same-day English dub as the series begins its NHK run in Japan.

The Seven Knights of the Marronnier Kingdom began its television run on 3 October 2026, and Amazon Prime Video has added the series worldwide with English subtitles and a same-day English dub.
A debut with the dub already attached
The anime adapts Nao Iwamoto's manga Marronnier Ōkoku no Shichinin no Kishi, which has run in Shogakukan's Flowers magazine since 2016 and reached its eleventh collected volume in June. It follows seven brothers who serve as knights of the Marronnier Kingdom, the realm at the centre of a continent of eight kingdoms, each of them dispatched to a different neighbour as an ambassador in search of a fated partner.
The English track
The dub cast is led by Kevin Andrew Rivera as Insomniac, Daniel Sean Smith as Chilly, Chelsea Krause as Baribara, Mariah Tzoumbas as Bruno, Paul Castro Jr. as Fraternity and Ryan Bartley as Hungry, with John Patneaude as Swordsman, Skyler Brigmann as Feverish and Corey Holland as Beast-Tamer. Additional voices come from Aeric Azana, Ted Evans, Ryan Bartley, Corey Holland and Tara Sands.
Twenty episodes, and a pedigree
The series is made for NHK's Educational channel, where it holds the Saturday 6.25pm slot, and yama performs the opening theme “Sayonara wa Iwanai”. It is set for a 20-episode run, and the source material has form: the manga topped the female-readers ranking in the 2018 edition of Takarajimasha's Kono Manga ga Sugoi! guidebook, and Iwamoto's earlier Kingdom of Gold, Kingdom of Water was itself adapted into the anime Gold Kingdom and Water Kingdom.
Our opinion
A same-day English dub is no longer a novelty, but where it lands still says something about who a distributor expects to be watching. Marronnier is a quiet, character-first fantasy romance with seven leads and no obvious merchandise hook, and putting the English track out on day one rather than months later treats the overseas audience as part of the launch rather than an afterthought. The casting choices matter here too: a dub of this shape stands or falls on whether seven brothers read as seven distinct people, and with a name like “Insomniac” opposite “Hungry” and “Chilly” in the credits, the production is leaning hard into the manga's conceit of giving every knight a single defining trait. That is charming when it works and thin when it does not, which makes the dub the real test of whether the ensemble survives translation.