It tells the story of a young woman named Nan Yan who enters a new world of immortals to save her mother who sends her and the enigmatic monarch Shao Cang; whose new identity of Ji Yang must be maintained to protect him against those seeking to destroy him. Through a series of coincidences, she forms a mystical connection called the "Spiritual Connection Seal" with Ji Yang. Nan Yan is practical and down-to-earth, while Ji Yang is aloof and mysterious, embodying the essence of a true immortal. Initially, the two dislike each other, but as they investigate Nan Yan's mother's illness, they become entangled in a conspiracy within the world of immortals.