(Y/N) (L/N), is just a normal research work that was accepted by one of the biggest companies Secure, Contain, and Protects. A site where it holds many unknown objects and creatures so they would not escape and harm society. Despite her working only doing tests and some papers, she was dragged into many troubles and found out her secret as the Fallen Angel. What will happen if everyone knows? Is she going to be saved? Or is she going to have the same treatment as the rest of the monsters. Picture is not mine and this is the rewritten version of the book.