Yūsuke Kobayashi Joins Seven Knights of the Marronnier Kingdom Ahead of Episode 7
His mysterious character has an equally mysterious plan for the seven knight brothers.
Yūsuke Kobayashi will voice a mysterious boy in The Seven Knights of the Marronnier Kingdom. The character debuts in episode 7 on Saturday, November 14.
Yūsuke Kobayashi will voice a mysterious boy with an equally mysterious plan for the seven knight brothers. The character debuts in the anime’s seventh episode on Saturday.
Staff for The Seven Knights of the Marronnier Kingdom (Marronnier Ōkoku no Shichinin no Kishi) announced his casting on Thursday, November 12, 2026. The official post also said Kobayashi had sent a comment.
The anime airs on NHK E-Tele Saturdays at 6:25 p.m., with reruns Fridays at 7:00 p.m. Amazon Prime Video streams it worldwide and also offers an English dub.
The series premiered on NHK Educational on October 3 at 6:25 p.m. JST (5:25 a.m. EDT).
The cast includes:
- Yūsuke Kobayashi as the mysterious boy
- Kengo Takanashi as Nemukunai (Insomniac)
- Makoto Tanikawa as Hakuai (Fraternity)
- Haruki Ishiya as Atsugariya (Feverish)
- Satoshi Inomata as Samugariya (Chilly)
- Kiyoto Mizuno as Kemono Tsukai (Beast-Tamer)
- Taishi Murata as Tsurugi Jiman (Swordsman)
- Reiji Kawashima as Harapeko (Hungry)
- Akeno Watanabe as Baribara
- Show Hayami as Narrator
The production staff includes:
- Director: Kiyoko Sayama at J.C. Staff; credits include Skip Beat!, Vampire Knight, and To Your Eternity (Fumetsu no Anata e) seasons 2–3.
- Script writer and supervisor: Shinzō Fujita; credits include To Your Eternity seasons 1–3 and The World Is Still Beautiful (Soredemo Sekai wa Utsukushii).
- Character designer: Yuriko Maeda; chief animation director credits include Requiem of the Rose King (Bara-Ō no Sōretsu) and One Punch Man TV 2.
- Music composer: Yoshiaki Fujisawa; credits include Apocalypse Hotel, Land of the Lustrous (Hōseki no Kuni), and Love Live! School idol project.
- Sound director: Jin Aketagawa; credits include Dr. Stone and Fire Force (En En no Shōbōtai).
The anime adapts Nao Iwamoto’s fantasy romance manga about seven brothers who serve as knights of the Marronnier Kingdom. Their kingdom sits at the center of eight kingdoms.
Each brother travels to a different kingdom as an ambassador, setting out on an adventure to find his fated partner.
Viz Media licensed the manga on October 1 and released its first two chapters digitally that day.
The manga launched in Shogakukan’s Flowers magazine in 2016. Shogakukan shipped its 11th volume on June 10.
It topped the manga list for female readers in the 2018 edition of Takarajimasha’s Kono Manga ga Sugoi! (This Manga Is Amazing!) guidebook.
Sources: The Seven Knights of the Marronnier Kingdom anime on X via ANN
