When Nebraska decided to sacrifice herself to save the people she loved, she didn't expect to wake up and find out almost everything about her changed. Her hair, her eyes, her speed, and her appetite. She then realizes that not only is she no longer human, but she has to spend the rest of her life living with two vampires. One of them annoys her to the point where she wants to stab herself, the other has anger issues that make her want to avoid him. To add to that, she also has to endure their 'training' to teach her how to use her abilities wisely.
If that wasn't stressful enough, those two didn't exactly tell her how many hunters and vampires alike wanted them dead. It's a kill or be killed life Nebraska got herself stuck in, and she's not sure if she'll be ready to stake whoever comes her way.