The Bloody-Fist has been the most feared and dangerous crime group in Mexico for years. The Godfather 'Baron' is the leader, and he has a son named Lucas and a daughter named Lucia. Lucas, was a very brutal and heartless monster as everyone thought. They always said he had no heart, because of the way he killed mercilessly. Some even called him 'El Diablo' which was 'The Devil' in Spanish because of some mysterious things they had found him doing. On the other hand Lucia, was a sweet gentle and nice soul, who couldn't hurt a fly, or so everyone thought. For this reason Baron her father disliked her greatly. Tanya Grayson, a young twenty three year old girl who lived with her twin sisters; Lily and Lila, after the demise of her mother and the mysterious disappearance of her father. Tanya on her own was an epitome of beauty. Tanya who had an innocent face, was a petty thief who worked with a thief organisation called the 'Sneaky fingers'. They were a little thief organisation who goes about stealing, and Tanya was one of them. But when she wasn't stealing, she was the most kind, innocent, naive, girl you've ever met. But what happens when Tanya was given the job with two of her other friends to break into the Bloody-Fist clan, the most dangerous clan in Mexico. On the first trial, they hadn't succeed but was lucky to escape in one piece. But what happens when Tanya foolishly returns alone a second time after getting involved in some stupid bet, but this time she runs out of luck as she gets caught, and becomes stuck with Lucas, the said Devil.