The Witch Doesn't Want to Become a God

"Before you stands the Witch of Stars and Destiny, founder of the Divine Research Tower, the world's sole eleventh-tier mage, and the guiding force behind the new order of the Nishi Continent—Su Yun. ... Su Yun mysteriously crossed over to the Nishi Continent, becoming a noble maiden offered as a sacrifice. At the brink of death, she awakened as a witch who had long vanished from the world—except this witch of hers... seemed a little different from the others. Mortals: Praise the great gods. Mages: I shall ascend the divine ladder! Su Yun: What's so great about becoming a god? I, a witch, slay gods with ease. (PS: Female protagonist, no marriage!)"