The production team for My Happy Marriage has confirmed that the adaptation will be a TV anime series that will premiere in July 2023. A new PV trailer and key visual have been released for the anime, as well as additional voice cast members. 

The new trailer previews the main voice cast playing their respective characters, as well as a basic synopsis of the anime series. 

A separate video has also been released to accompany the seasonal key visual for winter. 

The additional voice cast members for My Happy Marriage includes Ayane Sakura as Kaya Saimori, Koutarou Nishiyama as Kouji Tatsuishi, Houko Kuwashima as Yurie, and Hiro Shimono as Yoshito Godou. Reina Ueda and Kaito Ishikawa are voicing the main characters Miyo Saimori and Kiyoka Kudou respectively. 

The main anime production staff includes Yuudai Kubota (ID:INVADED assistant director) as director, Sachiko Yasuda (Gekijouban Shoujo Kageki Revue Starlight chief animation director) as character designer, and Takao Abo (The Rising of the Shield Hero Season 1 director) as series supervisor. Ami Satou (22/7 scriptwriter), Takahito Oonishi (The Strongest Sage With the Weakest Crest scriptwriter), and Momoka Toyoda (Shadows House scriptwriter) as series screenwriters and scriptwriters. Kinema Citrus is handling the animation production for the series. 

Other staff members include Inspired’s Emi Katanosaka (Fantasia Sango) as art director, Osamu Masuyama (Made in Abyss: Dawn of the Deep Soul art director) as art advisor, T2 Studio’s Ema Tsunetaka (Made in Abyss: Dawn of the Deep Soul) as photography director, Anna Okamatsu (Show by Rock!! Stars!!) as color designer, and Evan Call (Josee, the Tiger and the Fish) as music composer.

The original light novels are written by Akumi Agitogi and illustrated by Tsukiho Tsukioka, which first began as a web novel on Shousetsuka ni Narou. It was first published on January 15, 2019 and has six volumes released as of July 2022. The light novels are published under Kadokawa’s Fujimi L Bunko label. A manga adaptation by Rito Kohsaka began serialization on December 20, 2018.

Yen Press releases the My Happy Marriage light novels in English and describes the story as:

IS THIS MARRIAGE A BLESSING? OR A CURSE?

​Born talentless to a noble family famous for their supernatural abilities, Miyo Saimori is forced into an existence of servitude by her abusive stepmother. When Miyo finally comes of marriageable age, though, her hopes of being whisked away to a better life crumble after she discovers her fiancé’s identity: Kiyoka Kudou, a commander apparently so cold and cruel that his previous would-be brides all fled within three days of their engagements. With no home to return to, Miyo resigns herself to her fate—and soon finds that her pale and beautiful husband-to-be is anything but the monster she expected. As they slowly open their hearts to each other, both realize the other may be their chance at finding true love and happiness.

Source: My Happy Marriage Official Anime Twitter