Lost Souls: Tears Of Jade

"During a baby's first heartbeat, a human gets its soul. However, sometimes a soul drifts into a wrong body and that makes a soul lost. And therefor, both the soul and the body are doomed for a life full of problems and tragedy."

Lady Jade Northwick is a distinguished member of high society and a hopeless romantic who dreams of her prince Charming.
She meets a striking Count Darkwood at the ball and learns of his bad reputation. But in spite of that, the mystery surrounding him starts to intrigue her.
When she learns that her father gambled away their money and agreed for her to marry a man she despised, she is devastated and decides to seek help from Darkwood. But soon finds out that she is asking for a favour from a demon. And the demon wants something in return.