The Other Twin

Some call her RED, others call her the Angel of death. Whichever one she was called she lived up to it, she was invincible, smart, swift, and merciless and she had a meek twin, who serves in an orphanage. She was mistress to one of the most formidable Spanish gangsters, who was also ruthless. They were perfect for each other, given their hardness of heart. Luck was on their side until one fateful day, RED died in the middle of an operation, and for the fear of getting killed, her partners pleaded with her twin sister to pose as her. But their lives were two opposite ones and the other twin wasn't used to the life of her sister and the man she was living with. What happens when an Angel meets a Demon?