J.C.Staff Unveils The Seven Knights of the Marronnier Kingdom Trailer & Release Date

Japanese broadcaster NHK has officially confirmed that the TV anime adaptation of Nao Iwamoto’s acclaimed manga, The Seven Knights of the Marronnier Kingdom (Marronnier Ōkoku no Shichinin no Kishi), will premiere on October 3, 2026 on NHK Educational TV. Produced by renowned animation studio J.C.Staff (Edens Zero, One-Punch Man), the historical fantasy romance follows seven knight brothers dispatched across neighboring nations to secure peace and find their fated partners.

Key Anime Production Information

• Anime Title: The Seven Knights of the Marronnier Kingdom (Marronnier Ōkoku no Shichinin no Kishi)
• Japanese Premiere Date: October 3, 2026
• Broadcaster Network: NHK Educational TV (NHK E-Tele)
• Animation Studio: J.C.Staff
• Director: Kiyoko Sayama (Skip Beat!, To Your Eternity)
• Series Composition & Scripts: Shinzō Fujita (The World Is Still Beautiful)
• Character Design: Yuriko Maeda (Requiem of the Rose King)
• Music Composer: Yoshiaki Fujisawa (Mushoku Tensei: Jobless Reincarnation)
• Original Creator: Nao Iwamoto (Published in Shogakukan’s Monthly Flowers)
• Genre: Historical Fantasy / Romance / Adventure
• Official Japanese Anime Website: NHK Anime World Official Site
• Official Studio Website: J.C.Staff Official Site

What Is The Seven Knights of the Marronnier Kingdom About?

Set in a continent made up of eight distinct nations, the story centers on the Marronnier Kingdom, a peaceful territory positioned directly in the middle of seven surrounding powers. General Baribara, the nation’s famed leader, dispatches her seven sons, each a skilled knight with a wildly unique personality, to serve as diplomatic ambassadors to these neighboring lands.

While their official mission is to build alliances and prevent war, the brothers hold a shared personal dream: embarking on grand quests to rescue their fated princesses.

The main cast and characters voicing the seven brothers include:

• Nemukunai (Insomniac / Sleepy): Voiced by Kengo Takanashi
• Hakuai (Fraternity / Benevolent): Voiced by Makoto Tanikawa
• Atsugariya (Feverish / Sensitive to Heat): Voiced by Haruki Ishiya
• Samugariya (Chilly / Sensitive to Cold): Voiced by Satoshi Inomata
• Kemono Tsukai (Beast-Tamer): Voiced by Kiyoto Mizuno
• Tsurugi Jiman (Swordsman / Sword Pride): Voiced by Taishi Murata
• Harapeko (Hungry): Voiced by Reiji Kawashima
• General Baribara: Voiced by Akeno Watanabe
• Series Narrator: Voiced by Show Hayami

Why Is This Fantasy Romance Anime So Highly Anticipated?

Created by Nao Iwamoto, the original manga began serialization in Shogakukan’s Monthly Flowers magazine in September 2016. The series achieved critical acclaim early in its run, topping Takarajimasha’s prestigious Kono Manga ga Sugoi! guidebook list as the top manga for female readers in 2018. With 11 compiled graphic novel volumes published as of June 2026, the series boasts a rich, detailed world with political intrigue, romance, and humor.

The anime adaptation is helmed by veteran director Kiyoko Sayama, who served as chief director on To Your Eternity Season 3 and directed Vampire Knight. Scriptwriter Shinzō Fujita brings extensive expertise in high-fantasy romance, while character designer Yuriko Maeda captures Iwamoto’s elegant illustration style.