She is not a substitute, nor is she reborn, but an orphan from the previous dynasty disguised as a mute maid and sneaked into the Hou Mansion. When the mistress wanted to bury her in the name of "Kefu", she tore off the foot-binding cloth to reveal the royal secret mark that was branded when she was young - the royal mark that should have been burned with the late emperor, but it burned like blood on the soles of her feet. A secret war with the ancestral hall as the prison and the genealogy as the blade revealed the truth about the century-old puppet dynasty.