The long-running fantasy romance manga Marronnier Ōkoku no Shichinin no Kishi (The Seven Knights of the Marronnier Kingdom) by Nao Iwamoto is officially making the jump to television anime. Announced by NHK, the series will debut on NHK Educational this October — and with a high-profile staff and studio attached, this adaptation promises to be a highlight for fans of gentle fantasy and character-driven romance.
Anime Announcement: What We Know So Far
NHK announced on Monday that Nao Iwamoto's Marronnier Ōkoku no Shichinin no Kishi will receive an anime television adaptation slated for broadcast on NHK Educational in October. A teaser video has already been released on the anime's official site, although it contains no animation — a common early teaser strategy used to reveal the production and tone before full trailers roll out.
Staff and Production: A Strong Creative Team
This adaptation brings together an experienced staff roster and the veteran studio J.C. Staff. Key production highlights include:
- Director: Kiyoko Sayama — known for works such as Skip Beat!, Vampire Knight, and recent work on To Your Eternity seasons 2–3.
- Series Composer / Script Supervisor: Shinzō Fujita — who handled scripts on To Your Eternity (seasons 1–3) and The World Is Still Beautiful.
- Character Designer: Yuriko Maeda — chief animation director on Requiem of the Rose King and One Punch Man TV 2.
- Music Composer: Yoshiaki Fujisawa — notable for his compositions in Land of the Lustrous and the Love Live! franchise.
- Sound Director: Jin Aketagawa — whose credits include Dr. Stone and Fire Force.
- Animation Studio: J.C. Staff — a studio with a long history of adapting character-led manga into anime.
With this line-up, the series looks positioned to balance emotional nuance with polished production values — an ideal match for Iwamoto’s delicate fantasy romance storytelling.
Plot Overview: The Seven Knights and Their Quests
Marronnier Ōkoku no Shichinin no Kishi centers on seven brothers who are knights of the Marronnier Kingdom. The kingdom sits at the heart of a collection of eight neighboring realms; each brother is dispatched as an ambassador to a different kingdom. Their mission is equal parts diplomatic and romantic — they travel to seek their fated partners, encountering cultures, dangers, and quiet moments of connection along the way.
Main Brothers & Their Traits
- Nemukunai (Not Sleepy)
- Hakuai (Benevolent)
- Atsugariya (Sensitive to Heat)
- Samugariya (Sensitive to Cold)
- Kemono Tsukai (Beast Tamer)
- Tsurugi Jiman (Sword Pride)
- Harapeko (Hungry)
The setup promises episodic or arc-based storytelling where each brother’s journey explores different facets of romance, identity, and the politics of neighboring realms — giving the anime space to vary tone from whimsical to heartfelt.
Manga Background and Release Details
Nao Iwamoto launched the manga in Shogakukan's Flowers magazine in 2016. The series has enjoyed steady acclaim among readers — it topped the list of manga for female readers in the 2018 edition of Takarajimasha's Kono Manga ga Sugoi! (This Manga Is Amazing!) guidebook. Shogakukan announced that the 11th volume is scheduled to ship on June 10, and Seven Seas Entertainment publishes the manga in English for international readers.
Visual & Promotional Material
NHK’s early teaser is light on motion but establishes the series' aesthetic and introduces the production team. Early key visuals (like the one above) lean into soft palettes and classical fantasy motifs, signaling a focus on atmosphere and character expression rather than flashy spectacle. Fans should expect subsequent trailers to reveal animation quality, voice casting, and music — the latter being an exciting prospect given Yoshiaki Fujisawa’s involvement.
Why This Adaptation Matters
There’s a growing appetite for fantasy romances that prioritize character beats and worldbuilding over action-heavy spectacle. Marronnier Ōkoku no Shichinin no Kishi fits neatly into that niche: its cast of brothers offers diverse emotional perspectives, and each kingdom visit allows the story to explore different tones and themes. With an accomplished creative team and a studio experienced in faithful manga adaptations, this anime could become a go-to series for viewers who favor slow-burn relationships and lush fantasy settings.
Where to Read or Follow Updates
Readers looking to catch up with the source material can find the English release through Seven Seas Entertainment and the original Japanese releases from Shogakukan. For official anime updates and the teaser, visit the anime’s official site and NHK’s character page. The anime’s official announcement and teaser were posted on NHK’s character site and reported by Japanese outlets; these pages are being updated as new promotional material becomes available. (Official site: NHK character page.)
Anticipation: What Fans Are Hoping For
Fans will likely be watching for several key elements as production progresses:
- Voice cast announcements that match the characters’ personalities and age ranges.
- Music and opening/ending themes from reputable artists or composers that complement the series’ tone.
- Adaptation choices — whether the anime follows the manga closely or rearranges arcs for television pacing.
- Animation quality during action or emotional climaxes, particularly given the varied settings across kingdoms.
Final thoughts
Marronnier Ōkoku no Shichinin no Kishi looks poised to be a serene, character-forward addition to the fantasy romance genre this October. With Kiyoko Sayama directing and a seasoned team from J.C. Staff backing the production, the anime has a strong creative foundation. Whether you’re already a fan of Nao Iwamoto’s work or new to the Marronnier Kingdom, this adaptation is one to watch — especially for viewers who value tender storytelling, varied worldbuilding, and memorable character dynamics.
Sources: Comic Natalie, official anime page on NHK character site.
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