Nisai Sne Pon Chnam - animzoon.com

An eternal deity named Fu Jiu Yun develops feelings for a mortal woman with whom he longs to be romantically involved. He finds himself pursuing her for a thousand years and through ten successive mortal incarnations, but despite his great strength, he is unable to win her heart. She then has a second chance at life and is resurrected as a princess, promising a new beginning. In fact, they will be, since a prince with a perverse agenda and several demons from a nearby realm concoct a cunning scheme to kill the princess. The plan is successful in eliminating her family and wreaking havoc on her kingdom. She deftly flees her enemies by disguising herself as her maid Ah Man.