There's a Genie Next Door

In a world where immortals and demons co-exist, lives a cherry blossom spirit named Tao Hua who lives in Peach Blossoms Mountain. In a battle against her enemies, she was defeated and turned back to her original self. She was picked up by a man named Chang Liu and tenderly taken care of. As time goes by, Tao Hua develops feelings for Chang Liu. But Chang Liu seems to have a hidden secret and an unknown past behind him.
(Source: DramaWiki)
~~ Adapted from the web novel "Ge Bi You Zhi Tao Hua Yao" (隔壁有只桃花妖) by Ping An (娉安).