We could've had it all

Alexander needs someone to accompany him to his ex's wedding, and the only person who comes to his mind is Daniella. Daniella is his friend's sister, and they have only met for the second time since their initial meeting eight years ago. He is a member of the noble family in the country, which draws public attention and eventually leads them to marry each other.

As for Daniella, she needs to keep her wall because he hasn't really move on from his ex. However, the wall that Alexander built is slowly breaking down when he's with her.