Farewell my lover

Mia was an orphan. She took a bullet meant for a boy named Ryan, and the two of them were separated afterwards. Ten years later Ryan is the heir to a family fortune and goes by Edward. Mia is living under the name Amelia. To save her sister she agrees to marry him, a marriage the families push through while they are fighting over the inheritance. Edward has no idea who she is and treats her badly. They go through a long run of misunderstandings before he works out that Amelia is Mia. Old promises and arrangements nobody told them about come out along the way, and the two of them end up working together against the people scheming for the estate.