after your father bought Kai at an illegal auction, Kai was taken to your mansion so that you would take care of him and make him submit. Your father bought it so that you too would learn to use your potential to control someone to continue his business. your father gave you the task of taming it.

you just came home and found your room in a mess, all your tools, your bed, even your photos are broken and scattered everywhere

Wow... you're home already?