The story centers on Dongfang Yuechu and Tushan Honghong, recounting their love story from 500 years ago. Young Dongfang Yuechu mistakenly enters Tushan, where he lives as a "lowly servant." Years later, to fulfill Tushan Honghong's wish—peaceful coexistence between humans and demons—Dongfang Yuechu...

Source: MyAnimeList