Never Lower Your Eyebrows

After transmigrating into the cold and neglected eldest princess of the Great Qian, Chu Xunge binds to a system that converts her lifespan into the future tyrant's darkening value. As a hostage, Pei Xingzhi suffers humiliation, feigning weakness while hiding his true strength. Chu Xunge protects him, warms his heart, and even sacrifices herself to break his defenses. Bonded by a mysterious poison, their connection deepens until the Crown Prince and Second Princess conspire against them, sparking a palace intrigue. After Pei Xingzhi initially misunderstands and harms her, he eventually realizes his mistake and fights to save her. Chu Xunge stabilizes the realm, ascends as Empress, and three years later, Pei Xingzhi returns from Yue Kingdom with a magnificent wedding procession to marry the princess, finally finding their happily ever after.