College student Lu Xiaoxiao is brutally poisoned to death and reborn in the second semester of her freshman year. She is bound to System 037 and must complete 100 tasks with her nemesis, Shao Enci, to come back to life. Publicly kissing him during a basketball game, feeding him in the cafeteria, passionately kissing him at a KTV, and feeding him porridge in the hospital—one mortifying task after another throws her into embarrassing situations. As they grow closer through their constant push and pull, Shao Enci's deep feelings for her are revealed to have been hidden all along. Meanwhile, two storylines unfold in parallel: her best friend Meng Yuan's complicated romantic entanglements and the investigation to uncover the real culprit who killed Xiaoxiao in her previous life. With each task, everyone's fate is quietly rewritten.