Cassiopeia Black, Or most commonly known as the kindest Griffondor. Always helping the youngests, because of the motherly senses she developed with her little brother whose mother left after his birth. She's also a part of the Golden quartet but that's just a detail. But most importantly,, Sirius Black's biological daughter. Even if Regulus is her father in her heart. No Voldemort AU. I don't own the whole Harry Potter world just my oc's. Slow burn

As far as she was concerned, there was nothing special about Cassidy Winters. She's simply a girl who drinks far too much coffee than she would like to admit and reads books to escape her life as an unwanted orphan. Then, when she appears in a world of magical accidents and flying envelopes, Cassidy finds her purpose- to use her knowledge of the future to save her newfound friends. But not everything is as easy as it seems. JK ROWLING OWNS THE MAIN PLOTLINE harry potter x oc