Nighthaven is a free city with an officially recorded population of several million.
It’s a semi-autonomous city-state that belongs to no nation.

"If you are meta-human, you belong. If you’re non-human, come here."

Under the philosophy of the mighty dragon mayor, non-human beings from other worlds could enter and leave the city without any complicated procedures.

As a result, all kinds of capable non-human beings flocked to Nighthaven like bees to nectar.
It was especially appealing to those who had suffered from excessive discrimination in human society.

However, this bold policy had a double-edged nature.
Along with …