Beliefs of Nobles from Another World

In the unverifiable dark age, human beings who were implicated in the struggle between gods and demons were almost wiped out. However, at a critical moment, a mysterious existence suddenly appeared and gave them shelter. During the hundreds of years under his protection, human civilization began to sprout. Some favored humans gained powerful power and spontaneously established villages, stationed under high walls at the edge of the world, and were respected as "nobles". Taking the mysterious existence as the "ultimate belief" and taking on the responsibility of protecting the continuation of mankind; the remaining humans began to spread out and flourish throughout the world. Until one day, the "nobles" suddenly lost the news of their "ultimate faith"~