I, the boss of another world, married an elf saint

There is a restaurant full of legends in the capital of human trade.
Legend has it that the beautiful and gentle proprietress here is an elf saint.
That cold-tempered cashier girl is the Frost Dragon Emperor.
Among the waiters, the cute wolf-eared girl is the Beast Emperor, the arrogant vampire loli is the vampire queen, and the dignified human girl is the princess of the empire••••••
As for the boss, it is said that he once killed the tyrant, defeated the invading dragon clan, saved the elf clan, and was regarded as the supreme ancestor by the blood clan.••••••
The legend cannot be verified, but the only certainty is: the food here is the best in the world, and there are many beautiful girl shop assistants.