PLS HELP ME FIND THIS MANHUA

Plot Summary:
Female Lead: (blue/purple hair). She is the daughter of the Prime Minister. Originally sickly/weak, but later her soul is replaced by a strong woman.
Male Lead: (long red hair). He is a powerful prince treated like a "Beast" and kept in a forbidden area.
The Brothers: She has two brothers. One of them traveled far away to find a rare medicine to cure her illness while she was in a coma.
Iconic Scene: She meets the ML by accident while carrying a lunch box (meal) for her father and ends up feeding him.
The Dream: Her father (The Prime Minister) has a dream where he meets 3 children from the future (2 boys, 1 girl). They are his grandchildren and they ask him to save their parents so they can be born
ITS BEEN LONG TIME I READ IT AT IG AND I LOST IT