Song Chengchuan, the ruthless and cold-hearted Minister of the Dali Temple, orders the painter Jiang Zhi to reconstruct the faces of the deceased from their remains. To save her father, who has been wrongfully imprisoned, Jiang Zhi signs a one-month agreement, exchanging her painting skills for a chance to reopen his case. One snowy night, a drunken kiss beneath the corridor sends their fates spiraling out of control. Her father's wrongful conviction is shrouded in mystery, a flower-plucking case leads to military secrets, and a maid's identity is exposed, landing her in the imperial prison. Forced into a deal with Song Chengchuan, Jiang Zhi finds herself confined in the Song residence, where all debts are settled and nothing is owed. She conceals her origins in the northern deserts, while he struggles between the pursuit of power and the stirrings of his heart. As political intrigue swirls and love and hatred pull them in opposite directions, who will break free from this fateful entanglement disguised as salvation?