In the past life, Simon Preston forced to marry Princess Isabella Harrington, but they became resentful partners and hated each other for eight years. On the day of the war, Simon was seriously injured to protect Isabella escape, and Isabella subsequently sacrificed her life by jumping off a building. However, at the moment of her death, she realized that Simon had sacrificed his life to save her sister Emilia actually. Isabella was reborn on the day she requested to marry Simon. She suddenly realized and decided not to force anymore.