Ning Qingyan, a mute girl with no family to rely on, has endured the hardships of living under someone else's roof. At a moment of danger, she rescues Xie Yunzheng, who is gravely wounded. Grateful for her kindness, he takes her out of her prison and protects her amid the chaos of war. Rumors spread, conspiracies and old cases emerge one after another, and danger lurks everywhere. The usually cold and emotionally distant Xie Yunzheng shows her nothing but endless affection and favoritism. With his companionship, Ning Qingyan gradually opens her heart and begins trying to regain her voice. Amid the turmoil and smoke of war, the two join hands to unravel layer upon layer of mystery, endure countless hardships, and remain devoted to each other.