She: A top student at Tsinghua University, possessing high hacking skills, and a sniper of the Fire Phoenix Commando of the Chinese Army Special Forces Brigade. When she returns from rebirth and changes the original historical trajectory, how should she choose when faced with the betrayal of her comrades and the affectionate confession of her beloved. In order to complete the task, in order to get revenge, and for the regrets left by her previous life, she deeply hurt the person who loved her deeply. Will he forgive her? Faced with his ridicule and rejection, where should she go? Can they go back to the past...