National Beast Control: Kidnapped by a Sickly School Girl and Used as a Pet

[Beast control, 1v1, stupid penguin + bloodthirsty yandere, turn white, develop] Lin Xiaolu found herself traveling through time and becoming one of the heroines in a novel praising the great resonant movement of life. Okay, I know this question. I can rely on my memory of reading the original work to seize the lead role in advance. I can even win over other heroines to my side. I have never done it and I have read it! Etc! Why did he transform into a fox-eared girl as soon as he traveled through time, and why was there a novel protagonist who wanted to forcibly contract with him guarding the door? It's all over, let's peacefully turn into a cream puff fox... But I never expected that by some strange combination of circumstances, I would be picked up by the biggest female villain in the novel. I also didn't expect that the villain in the original book who wanted to kill all extraordinary creatures and return mankind to the era of beast control turned out to be a yandere and crazy person in private...