The fourth son of the palace has a rebellious character.Gong Ziyu lost his mother in his early years, and his father didn't like him either.When he grew up, he drank and had fun all day long and did not do his job. This was actually to attract his father's attention.Because of his family background, Gong Ziyu has always been excluded from palace affairs.The sudden murder of his father and brother made him hastily step into the position of swordsman.Although he has no interest in power, he still decided to use his identity as a sword wielder to find out the truth about the death of his father and brother.