Desirable Sins

After Aria's whole family dies in a tragic explosive house fire, she was only 8 at the time when her father's trusted right-hand man took her under his wing. He trained her day and night, relentlessly until she became the best underground fighter and assassin there was. When a cocky mafia boss came in and challenged her, she couldn't resist. But what's bound to happen when she finds out that he was related to her parents' death? Will she still fall under his charms or defy those desirable sins?