Qian Yunxi, the eldest daughter of the Grand Councilor, has had supernatural powers since she was young. Because of this, she has been kept in the Spirit-Cloud Mountain as she is seen as an ominous girl. When she's 16, she finds herself substituted for her younger sister into a marriage with Prince of Ye. However, it is said that the Prince of Ye is cold, eccentric, and cruel.

[Source: Crunchyroll]