In the late Ming Dynasty, Shen Lian is a loyal captain of the Imperial Guard who finds himself embroiled in a complex conspiracy. Tasked with a secret mission to eliminate a traitorous eunuch, Shen's life takes a dramatic turn when he encounters Bei Zhai, a talented painter accused of being a part of the rebellion. The encounter pits him against powerful foes, dragging him into a web of deception that threatens his integrity and life. As Shen navigates through various obstacles, he struggles to unravel the intricacies of the conspiracy while grappling with his evolving feelings for Bei Zhai.

Shen's isolation deepens as he becomes uncertain whom to trust, and his once clear sense of duty is clouded by conflicting moral choices and hidden agendas. While trying to prove his innocence and unveil the true culprits behind the plot, Shen uncovers darker secrets about those closest to him. In a world laden with betrayal, shifting alliances, and deadly revelations, Shen must rely on his martial prowess and inner resolve. The stakes grow increasingly higher as the line between friend and foe blurs, leading to a series of intense confrontations that test Shen's loyalty and determination.