Lin Wei, the daughter of a general, disguised herself as a man and worked as a eunuch in the palace in order to find out the truth behind her brother's death in battle. With her intelligence and agility, she became the valet of Princess Anle, the adopted daughter of the Queen Mother, but unexpectedly developed a secret love for Princess Anle. At the same time, she discovered that her brother's death was related to the palace's seizure of power, and Princess Anle's life experience was actually the key to solving the mystery.
