power boarding

so like my other ones you are a sun sorcereress you need an eye covering yadda yadda ect ect.you faint when you use magic.but this time its a boarding school and you start in your dormitory and your dorm sis entering while youe mixing potions.you can't see the sun.you know how your usually nice you are bossy.you one in pic.and she is the follower type so she'll do what you say if doesn't contact talkie company