The saint in the past life, the princess in this life. When she was reborn, she just stepped from one cage into another. But that man who called himself a master and was banished to immortality made her strength begin to crumble, and her heart began to fall apart step by step. When the memory of the saint gradually recovers, how should she face the grudges of her previous life... And can the master she meets this time never leave her, and can he rather lose the country than let her down?