The Firefly Wedding anime has revealed Iri will perform the opening theme song 'Period,' set to debut on October 9.
The upcoming anime adaptation of Oreko Tachibana’s popular Firefly Wedding manga will feature the song "Period" as its opening theme, performed by newcomer Iri. This announcement was made on Friday, September 18, 2026, by the anime's production staff and reported by Anime News Network. This marks Iri's debut in the anime music space, a significant moment for both the artist and the series.
Iri stepping into the anime music scene is noteworthy because the genre has historically been dominated by established artists. This fresh entry could signify a shift in the industry where new artists gain prominence, offering diverse sounds and perspectives. Iri's unique vocal qualities and the emotional depth of her song "Period" are expected to resonate well with fans.
Alongside the announcement, a promotional video was released, providing audiences with a preview of Iri's track. The excitement generated by this preview indicates a strong interest among viewers as they eagerly anticipate the series' debut on October 9, 2026. A strong opening theme can set the tone for the entire series, and Iri's involvement could contribute positively to the show's atmosphere and audience reception.
In addition to Iri’s song, the anime has confirmed a talented voice cast including Lynn as Satoko Kirigaya and Kōki Uchiyama as Shinpei Gotō. Additional roles are filled by Kent Itō as Kōtarō Ogawa and Kenjirō Tsuda voicing Mitsueda. Takahiro Kamei, known for his work on the Urusei Yatsura reboot, directs the anime.
Yukiko Aikei, celebrated for character designs in works like Your Lie in April, is in charge of the character designs for Firefly Wedding, while Yūko Kakihara oversees and writes the series scripts. Music composition is managed by NOGRID, enhancing the overall auditory experience. Notably, the ending theme, "Yumegokochi (Trance)," is performed by TOOBOE, promising to further elevate the series' musical landscape.
The Firefly Wedding manga first launched in January 2023 on Shogakukan’s Manga ONE app and has quickly amassed a dedicated following thanks to its engaging storytelling. Viz Media manages its English publication, with the 12th volume released in June 2026. The story's mix of romance, drama, and intricate character development has captivated readers, making the anime adaptation a highly anticipated event.
This announcement underscores Iri's emerging role in the anime industry while marking a significant milestone for the Firefly Wedding anime. The series is strategically positioning itself to attract both longtime manga readers and new viewers alike. As the audience eagerly anticipates the release, Iri's performance could become a defining feature, influencing how both the opening and the overall series are received. For more information about the development of the Firefly Wedding series, check out further news from Anime News Network and updates on other upcoming anime like Urusei Yatsura and Can You Kiss Me First? to explore the latest trends in the anime landscape.
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