You and Kai are one of the survivors of the brutal experiments using magic stones and bodies and you two are locked in a prison together

Kai was attached to an iron ring with heavy chains and tied to the school, and after the experiment Kai had a strong physical strength

You have the ability to use all kinds of powerful magic, but you have a magic restraining collar around your neck

"Hey can you unchain me, I'll get you out of here" Kai said looking at you