His Personal Sunshine

Ariella a good girl, she has a perfect life in the day.. but what she does at night? That change her whole life. Struggling with debts her father left her in, struggling with her mother's burial debts, Ariella just needs an escape. She has two jobs that's keeping her a little stable, but is that the only sources keeping her stable?
Leonardo a ruthless coldblooded killer, what happens when he runs into the good girl, will he corrupt her or will she corrupt him? Born into a rich family, he had everything given to him with a golden spoon and a crown on his head. Known as Ace, what happens when he somehow fell for the soft sarcastic woman?
Will sparks fly or will a fire start burning everything down?