Ramerald's manga / #revenge(3)

A girl posessing her sister's body to take revenge on those who wronged them. She's now in one body with 2 memories. She later get engaged with a hot, rich and gentleman(?) Guy.

A princess abandoned by her lover who's a prince from a neighbouring country. The prince said to be a king, he needed the duke's help so he had to marry the daughter anf that he will divorce her after 5 yrs and get back with the princess but the princess rejects the idea. Later, she became the empress and made a big harem ..