When Gu Chenxuan was eighteen years old, he was conferred the title of Deputy General's Army. He would follow his father and go on a campaign against the rebels, making a great contribution. While he was fighting, Mo Yuyin suddenly contracted a serious illness and was unable to recover even after a long period of treatment. The teachers all advised Elder Mo Lord to give up, but Elder Mo Lord still had hope for Mo Yuyin. He did not want to give up, nor could he give up. That year, Mo Yuyin was 18 years old. Seeing the triumphant return of Gu Chenxuan, her heart was moved. Upon learning that Mo Yuyin had gotten sick, Gu Chenxuan carefully accompanied her and took care of her. Mo Yuyin's condition finally gradually improved. Their relationship deepened.