Kekkon Yosou yo

Mitsuha and Kota have been close friends since high school and now share an apartment. They are not in a romantic relationship, and Kota moved in as a casual roommate. Both are content with their current lifestyle and have no strong interest in marriage. They enjoy each other's company but are each looking for their own ideal partner in the future. Meanwhile, those around them seem to be finding love and getting married, leaving Mitsuha and Kota often attending weddings as guests. They wonder when their own path to a happy marriage might begin.