The 10th volume of the manga 365 Days to the Wedding (Kekkon Surutte, Hontō Desu ka?: 365 Days to the Wedding), by Tamiki Wakaki, revealed that it will end in its 11th volume, which will be released in the summer.
365 Days to the Wedding – Volume 11 of the manga will be the last
Furthermore, it's worth remembering that the dust jacket of the 10th volume also revealed that an anime adaptation of the manga is in production.

Therefore, Tamiki Wakaki launched the manga in Shogakukan 's Weekly Big Comic Spirits in March 2020.
The manga inspired a live-action adaptation on October 7, 2022.
Synopsis
Takuya and Rika are coworkers at a travel agency in Tokyo. Both are single, but they don't mind, as they are introverts with fulfilling home lives. Unfortunately, their current job is to recruit employees for an office in Siberia, and unmarried employees are the first to be considered. Rika is desperate to avoid the transfer and approaches Takuya with an idea: if they pretend to get married in a year, they can stay in Tokyo. Ultimately, the only problem is that the two barely know each other! If these two coworkers "fake" a relationship, will it become something real?
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