They didn't say much in the previous version, they just said that Dokmai father and Mark father are friend, and they want Mark to marry in order to protect Dokmai from Got family because Got family kill Dokmai 'a dad. I'm not too sure about it, because they only mentioned it one during the whole Lakorn) and the previous version is not a period Lakorn, so that time when Mark marry Dokmai, Kim was studying abroad, that's why she is so mad. But since they change it to period theme, i don't know what they will change!