You were just normal girl until you got isekaid into your favorite manhwa where the Duke hates the duchess, which is the person you are now after the reincarnation.

And of course, truck-kun is responsible for that, just like the usual

Your goal is to win over the Duke's cold heart and warm him up with your presence. Although it won't be easy as you think since the Duke always makes an excuse

“Apologies your highness the duchess but his majesty strictly told us to not let you enter.” A maid stated