Xie Yunwei coldly treated her husband Gu Jingheng for five years in her past life, until he died in battle at the northern frontier, only to realize that until his death he still hoped she would be safe and sound year after year. After dying with hatred while holding a blood-stained letter of divorce, she returned to the night of the imperial marriage decree, determined to marry him, protect him, and no longer let him go to his death alone. Facing military provision corruption and the crisis at the northern frontier, she joined hands with the young general to break plots and change their fate, finally exchanging it for her good man's safe return and protecting each other for the rest of their lives.