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Firefly Wedding

The Firefly Wedding anime

A 12-episode adaptation of Oreco Tachibana's manga, produced by david production and broadcast on Fuji TV's noitaminA block. It premiered October 9, 2026 and runs weekly through Christmas Day.

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Scheduled ·

What the anime adapts

Firefly Wedding began as a manga in January 2023 and finished its main story in February 2026. The anime picks up that completed work: Satoko Kirigaya, an earl's daughter with a failing heart, is abducted and offered a choice, and her impulsive proposal to the assassin Shinpei Gotō turns a contract killing into a consuming romance that carries the pair from a noble household to the red-light island of Tennyo.

Season one is twelve episodes — no split cours, no filler — airing one per week. Because the manga is already finished, viewers coming to the anime can read ahead without hitting a cliff of unadapted chapters, though this guide keeps spoilers out of the episode pages.

How it looks and sounds

The series is directed by Takahiro Kamei with scripts by Yūko Kakihara and character design by Yukiko Aikei. The music is handled by NOGRID. The opening theme, "Period", is performed by iri, and the ending theme, "夢心地 — Yumegokochi", by TOOBOE.

Cast

  • Satoko Kirigaya — Lynn
  • Shinpei Gotō — Kōki Uchiyama
  • Mitsueda — Kenjirō Tsuda
  • Kōtarō Ogawa — Kent Itō

Satoko was voiced by Yui Ishikawa in the early promotional video, but Lynn voices her in the anime itself. See the full cast and staff page for the supporting roles.

Broadcast & streaming

In Japan, Firefly Wedding airs on Fuji TV's noitaminA block on Fridays at 23:30 JST. Outside Asia it streams on Crunchyroll, with new episodes arriving alongside the broadcast. Muse Communication handles Southeast Asia. See where to watch for the region-by-region breakdown.

Keep going

Anime FAQ

When does Firefly Wedding air?

Firefly Wedding premiered on Friday, October 9, 2026 on Fuji TV's noitaminA block (Fridays, 23:30 JST). New episodes air weekly through the 12-episode finale on December 25, 2026.

Where can I watch Firefly Wedding?

Outside Asia the series streams on Crunchyroll, with new episodes on Fridays. Muse Communication holds the license for Southeast Asia, and the original broadcast is on Fuji TV in Japan.

How many episodes does Firefly Wedding have?

Season 1 is 12 episodes. It runs from October 9 to December 25, 2026, one episode each Friday.

What is the correct watch order?

Watch in broadcast order — Episode 1 through Episode 12. There are no OVAs, recap episodes, or split cours to shuffle, so the weekly schedule is the intended order.

Has a second season been announced?

Not as of October 2026. Season 1 covers roughly the first act of the manga, so a continuation is possible, but no official announcement has been made.