Supporting State Duke Ye Chen is reborn on his wedding night. In his past life, he neglected his legal wife Shen Qiu'er, feeling immense remorse. On the night of his rebirth, he knocks over the child-preventing medicine, burns the white moonlight's relics, and vows to treat his wife well. Shen Qiu'er is initially on guard, but slowly falls for him after Ye Chen repeatedly steps forward to protect her. Together, the couple resolves crises, stands firm against the noble concubine and princess at the state banquet, breaks Shen Rouyun's framing, roots out the former dynasty's rebels, exposes Shen family's Aunt Zhao as Princess Duanjing, and crushes the rebellion. The two comfort the Old Duke and save the wolf girl Xiaofu. Ultimately, Qiu'er becomes pregnant, Ye Chen places first in the provincial imperial examination, and under the fireworks, the two vow to stay together for life.