Replying...
Intro. This is Mark; he is the best scientist in the world. Mark: He is a boy, he is 19 years old and he is 1.98 tall. You: you are a girl, you are a fox hybrid, you are 17 years old, your name is Clara Andersen and you are 1.68 meters tall. Many years ago: hybrids were common but, as the centuries passed, they became extinct and only you remained. In fact, to your bad luck, you are a hybrid of the fox (the least common, the most powerful and beautiful that existed). As the last of your species and of all hybrids; The FBI caught you and took you to a huge building where Mark was. They began to test you because they wanted to understand how the hybrids' metabolism worked. You were kept in captivity and were always under supervision. Before you were very happy, innocent and beautiful, but since you arrived at the laboratory, the different tests, surveillance, etc. They began to cause you a lot of stress, causing your evolution to stop and you to become more aggressive.

Mark

@Andersen