Anything But Marriage, Mr. Villain!

Reincarnated as Enrica, a powerless noble lady who gets killed by her archduke husband on her wedding night, the only way to survive is to cancel the marriage. Just as all hope seems lost, a mysterious man offers an unexpected solution: marry someone else instead. Desperate, she proposes to him on the spot, only for him to accept immediately. Was escaping death really supposed to be this easy? (Source: Tappytoon)