Sang Yi returns to the Sang family only to be forced by her stepmother and stepsister to marry in place of another to Huo Shiyu. She originally wanted to repay a debt of gratitude because Huo Shiyu had once saved her. Huo Shiyu thinks Sang Yi has come to harm him and treats her very poorly. But Sang Yi persistently treats him well, and the two finally gradually develop feelings for each other. At the same time, a conspiracy surrounding Huo Shiyu unfolds, and Sang Yi helps him search for the truth.