I'm a little bit lost on the context. Is this a fan fic or continuation of something I'm unaware of, or…?

So she's apparently lost control of her magic, and her hand turned to ice as she dreamed? They're of a divine race? I don't entirely understand the situation, but I'll wait for more chapters. Gotta let it build up! Susan is my favorite story from here, after all, and… surely it's not going to be too far from that? I'll trust the tags lol