Firefly Wedding is a tV series anime that premiered in fall 2026, produced by david production.

About the production: the story comes from a manga, there are 12 episodes of about 23 minutes and its current status is "airing".

Its main genres are drama and romance, with themes such as Yandere, Josei, Assassins and Heterosexual.

On AniList, Firefly Wedding has an average score of 75%, a very good score, and appears on 50,971 users' lists.

On the surface, Satoko has it all—she’s beautiful, the daughter of a nobleman, and at a prime age for marriage. Unfortunately, she is also quite ill and only has a short time left to live. Before she can secure a marriage that will redeem her worth in her family’s eyes, she finds herself the target of the mysterious assassin Shinpei, and her plans are put in jeopardy. In order to save herself, she makes a desperate proposal—of marriage! When it comes to love, however, Shinpei takes “until death do we part” seriously. (Source: VIZ Media)

Official synopsis from AniList.