The two demons

What most people don't know about Marinette Dupain-Cheng, is that her real name is actually Marinette Martha Wayne. She was raised together with her twin brother Damian. They got separated and while Damian got to live with his father, Marinette was sent to Paris. She used the name Dupain-Cheng, because she didn't want anybody knowing her real name. But what happens if Lila Rossi fulfills her promise? What if she got reunited with her twin? What will the bat-family think? And the most important question. Will karma finally come for Lie-la Rossi?