The official social media account for the Firefly Wedding television anime announced on Thursday that Kazuyuki Okitsu has joined the cast as Eishin Nitobe, the son of the Metropolitan Police Department superintendent general. The series, which adapts the manga by Oreko Tachibana, began its broadcast run on October 9 as part of Fuji TV's Noitamina programming block. It is currently available for streaming on Crunchyroll. The production features direction by Takahiro Kamei at david production, with series composition by Yūko Kakihara and character designs by Yukiko Aikei. The story follows Satoko Kirigaya, a nobleman's daughter who proposes marriage to an assassin named Shinpei Gotō to survive a life-threatening encounter. In addition to the ongoing anime, a live-action television adaptation of the source material is slated for release in 2027.