Responses

spoilers
Lilta and MC are twin sisters. Their mum had to marry the empress for her family. She wanted to keep her palace secure so she had full control of who went in and out. So she gave birth to Lilia and MC alone. The Mc with brown hair that's her original appearance. Mc's uncle performed experiments on them, and mc was a sick child she suffered worse. Lilita's disease is caused by malice, the more ppl who hate her the more she'll suffer. The disease is meant to help Uncle attain eternal life
I know that they're twins but I didn't noticed that they're identical twins maybe because of the hair color and their expression