Another World, Another Chance?

There is a theory, not a very popular theory, that each world has a hundred different versions. A thousand different 'what if' scenarios. A million different dimensions from a single 'mother' dimension. What if there was a dimension, similar to ours, where each child had a not-so-imaginary friend to help them through life? A guardian born from a single wish, belief, or desire that is so strong, it controls a child's future. And if I said there is actually a world like that, and a girl who is from that world. Banished from her home dimension, unfairly, by the one she loved, Carolyn Rose has witnessed the horrors of our realm, and vowed to help as much as she can. Her loyal Soul Guardians, Luna and Midnight, whom were also banished with Carolyn, aid their Soul Holder in whatever way they can. But when old friends come back, asking for their help, will they go back willingly to the very people who hurt them the most? Or will their bitterness anf resentment get the best of them?
Cover credits go @Sophiec312