My Happy Marriage anime officially had season 2 announced, coming right after the season 1 finale. The anime ran for a total of 12 episodes, with Takehiro Kubota directing it at studio Kinema Citrus. A special illustration was shared for the season 2 announcement: 1l669
The light novel was initially published on the Shosetsuka ni Naro website. Fujimi L Bunko later acquired the title in January 2019 and began publishing it with illustrations by Tsukiho Tsukioka. Yen Press licensed the novel in English, and they describe the story:
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: Official Website
©Akumi Agitogi, Tsukiho Tsukioka/KADOKAWA/My Happy Ｍarriage Partners