National Fate: A Crossover Anime Marriage, Starting with the Great Tree King

A mysterious, towering black tower descended from the sky, bringing with it a national destiny matchmaking game. Each nation had to randomly select one challenger to participate. Jiu Kaibai, a single nobleman who had finally become a landlord at 28 and was preparing to settle down, was "luckily" chosen as the challenger. In that instant, he was devastated. However, unexpectedly, during the random talent selection, he gained the "noble" talent, starting with the dragon maid Tohru and the time-stopping maid Izayoi Sakuya. And then...