After being betrayed by her adoptive father, the formidable and beautiful assassin Qingmao is left for dead. In her final moments, she uncovers the truth that the mastermind behind her family's annihilation has been lurking nearby. Burning with vengeance, she bides her time for five years, reinventing herself as the enchanting songstress Liu Rumeng. Now, under this new identity, she sets her revenge plan in motion...