Holy Magister in the Age of Chaos

Rowan traveled to a different world, studied under a rogue mage from the magic academy, and eventually became a top holy-level mage. However, when he became successful, he traveled through time again, and his holy level strength came to nothing. Rowan, who was born in a dead house, wants to take in a ferocious beast as a pet, a mermaid as a maid, a queen as a wife, and anything else, so let's take in a royal city to support him in his old age. In the new world: Dragons dominate the world and enslave humans. The orcs are ready to move and covet China. The Seven Gods return to China, and darkness reappears. The old gods are waiting for an opportunity to seize China. The legend of a magician and the extraordinary story of an ordinary person.