As a camp counselor, Christina asked to be Madara's partner. The heroes will spend a lot of time together, so Christie, as Madara calls her, is in no hurry to share her secrets with him. And she was forced to become Madara's partner for a rather non-trivial reason: it turns out that the heroine knows Lena and Alisa, who shared stories about their mysterious adventures with their friend. 
She has purple bob hair, a slender figure and a strange book in her hands. She is actually a vampire but hide