During the late Qing Dynasty, Empress Dowager Cixi presents a painting of a girl with wings to Consort Jin, hoping that finding the girl in the painting could change the impending fate of the Qing Dynasty. Hence, Ady An enters the picture and she’s a butterfly demon. She falls in love with Cixi’s bodyguard and gives birth to two daughters. When attacks threaten the forbidden city, Ady’s forced to show her demon form to protect her family, rendering herself into a glass doll as a result. The whole event is witnessed by Professor Jiang. Fifteen years later, her daughters are all grown up, unaware of their half-human, half demon background (amnesia aka emotional trauma blocking past memories.) They befriend Professor Jiang’s daughter and a suave wealthy man, beginning the tumultuous love story between human and demon.