The Runaway Empress: His Majesty, Please Let Me Go

The heroine is reborn as the legitimate wife from her previous life, whom the hero starved to death. She repeatedly tries to flee to avoid that fatal ending, only to make the hero fall deeply in love with her. She shares his hardships and weathers the difficult years of rebellion by his side. In the end, she and her devoted, loyal-dog of a husband rule the realm together, and she is crowned empress, cherished above all others.