Board Thread:Speculation House/@comment-10390252-20150427084942/@comment-25396609-20150429235611

We don't know for sure signal is just a highschool, some private schools in our world serve 1st-12th grades(or equivalent,) perhaps Signal is similar and takes students from both the middle and high school age groups, in which case Ruby and Yang wre both attending the school for that etire span of time. if it's a boarding school, the possibility of siblings with a relatively small age gap being placed in the same dorm are fairly substantial, especially considering they do come from a broken home.