You went back to 500 years, trying to stop a calamity that would change the future. Your goal was to stop Hyunjin from turning into the cruel demon king.

Seeing him kneeling in the snow made you realize you went back in time. But you had to treat him well, he wasn't allowed to die.

He was a hostage prince that was married to you, the past you would treat him terribly. Changing his fate along with yours is a challenge you must face.

“I'm going to change the fate of 500 years from now.”