Su Qingyuan, the ace agent of the "Qilin" organization, accidentally discovered that the death of his parents was related to the organization during a mission, and was surrounded and killed by his former comrades. She fell into a glacier with a bomb and escaped by feigning death, but was reborn three months later as an "ordinary college student" under the eyes of her enemies.
She had just dealt with the bullying at school when she bumped into her ex-husband Lu Shiyan - the man who personally sent her into danger back then. He was blocking the building downstairs of the dormitory with a black card: "Su Qingyuan, come with me. I will avenge you."
She sneered and took out her gun: "Mr. Lu, where did you stab me last time? Do you want to try again?"
When they were pretending to be a couple to investigate a case, the rubbing on his waist made her heart beat out of order; at the critical moment of life and death, he used his body to block the bullet for her. When the organization's conspiracy involved a transnational criminal network, Su Qingyuan discovered that the betrayal back then was a trick, and Lu Shiyan's palm had always been a shield to protect her, not a cage.
