
They were brainwashed into thinking Alyssa was the unloved sister and Marrianne was the well loved one. Marrianne have possibly altered everyone's memory into thinking she was the well loved princess "Alyssa" from the start. Basically they didnt just swap appearances but they swap roles too. Marriane is now the well loved princess and Alyssa is the black crow.
Alyssa's brother was also really sad about Alyssa's death. (He probably loved Alyssa from his heart and the brainwashing maybe didnt affect him) Brainwashing and contract with demons (aka black magic) come with a price though but ofc Marrianne had to pay a price but wont spoil for yall(๑•ㅂ•)و✧
For those who are confused,
She made a contract with a demon i believe which is black magic yes. The mirrored reflection is what she originally looked like but she brainwashed everyone into thinking that she has silver hair and golden eyes and she is the loved princess and Alyssa is not. The flashback on when they were children where Marrianne made an appearance, she HAD black hair and green eyes and was the outcast princess. But the way they drawn it brainwashed us too X-X Alyssa had silver hair and golden eyes and was the well loved princess. Thats why everyone was being kind to her and not Marrianne even though the artist drawn as though they switched appearances. At that point she has already summoned the demon (where her eyes turned red) and brainwashed everyone after that probably. She has a superior complex to Alyssa and believe that she deserves the love given by her family and not Alyssa. So basically she is born evil because she has no regret or guilt after forcing Alyssa to her death. When she saw how Aisha reminds her of Alyssa and suspect she could be Alyssa(seeing how she was loved etc), she planned to kill her (im thinking the assassination carriage could be planned by Marrianne) and Elmir would wage war and would lose and Aisha would die again. (╬ ̄皿 ̄)凸