Transmigration: Huh? Uchiha Hikaru Is My Contract Beast

[Female lead: Uchiha Hikaru] + [Heavy yandere elements] + [The later story gets dark and may be disturbing] + [A minor exotic-beast element] My name is Chi Xiaoyang. I used to be a huge Naruto fan, but after I took a nap in my rented apartment, I discovered... that I had somehow been reborn... And... I had been reborn into a world where everyone had a contracted beast. My parents were still my parents, and my teachers were still my teachers. It was just that... Chi Xiaoyang stared at the girl lying on top of him, his face full of disbelief. “Why? Why is my contracted beast Uchiha Hikaru?!” I thought I could take Uchiha Hikaru with me to conquer the world and make a name for myself, but then something unexpected happened. “Brother Xiaoyang... do you really not remember me?” “Xiaoyan... do you know who she is?” I looked at my childhood friend beside me, confused. She gave me a sly smile and replied calmly, “I don't know her... Judging by those hospital clothes, she must be a lunatic who escaped from a psychiatric hospital... I'll help you get rid of her...” “Um... all right... Just don't scare the poor girl by getting physical...” The light of hope in Uchiha Hikaru's eyes shattered completely. “Uchiha Hikaru! You're a lunatic!” “Hahaha... Brother Xiaoyang, I am a lunatic... and I'm the lunatic you raised...” The synopsis isn't doing this story justice, so please read the novel. Note: Hikaru's characterization gets a little inconsistent later on, and she has a pretty rough time. Please don't read if that's not your thing...