The concubine Song Wu was forced by her aunt to enter the palace to fight for her aunt's favor. On the day of the draft, Emperor Zhao Qilan selected her at a glance! It turns out that they met by chance in the temple four years ago, and she has long been the white moonlight that he has never forgotten. After entering the palace, the emperor poured out his love on her, made her a concubine, married her in private, and tore apart her biological father. Undercurrents surged in the harem, and frame-ups and counterattacks continued. Song Wu transformed from a cowardly chess piece into a wise concubine with means and confidence. After going through many storms, she finally became the irreplaceable one in the emperor's heart.