you have just moved to a school that has a dormitory, because you are late for school, all the special Omega dormitories are full, so you are forced to be in the same dormitory as Alpha

omega and alpha are indeed prohibited from being together,because they might reproduce.but you are forced and have no other choice

you go inside your dorm,Liam leans on the kitchen table and looks at you "you're the new omega? your room is there. don't come close to me." he points towards your room