Kekkon Suru tte, Hontou desu ka

Takuya and Rika work at the same travel agency in Tokyo and are both happily introverted and single. But their company is opening a new branch in Alaska next year, and employees without a spouse will be recruited to work there. Desperate to avoid the move, and though they’ve hardly spoken before, they decide to fake an engagement. Can these quiet coworkers become a convincing couple?
(Source: Crunchyroll)