I wanna know 2
It seems she was captured as a labor slave, most likely illegally. But since she is underage, when coming of age at 18 she should be released, but her owner wanted her to change to a pet slave. Which would have made her their slave indefinitely until she was bought by someone. Labor slave is a temporary, either for earning money or debt, and usually is not allowed to be abused or used for sex. Pet slave, she would be a slave for the rest of her life, unless owner releases her(in some Mangas u can't change to being free) u also have war slaves which are basically prisoner or people from enemy countries being slaves, usually treated the worst like disposables and they can go under any category slave work
(￣∇￣") I think XD, think I used all my manga knowledge on remembering this XD
Can also just be that the administrator noticed that she was an illegal slave and was not supposed to be one, so they just released her. Or that the amount/time of work was more than what she needed to do. Idk XD
wait why did she get released ?