This story well be about a girl who well not get along with EXO members because they are werewolves and plus her father that she hates is one too. She has a history with werewolves. At the same time she thinks that she is the only child but there's another twin of her. Her other twin longs to be known by her, but she works with there evil father, so she has to keep her distance from her to keep her safe. There father use to be a lab scientist before he become a person of wolf blood. He spends years trying to combine bloodlines between vampires and werewolves to create a stronger bloodline of Hybrids. Through those years he fails, but the only key is her. He envys her sister, because he thinks of her as a true daughter. In the end the twins work together to bring down their evil father.