Allison is a girl who lost her parents in boarding school and began a life of tragedy

When Elena is brought to a small town called Storybrooke, she learns that the students at Storybrooke High are the sons and daughters of fairytale characters, but they don't remember who they really are cause the Evil Queen cursed them. Elena is also told that she's the only one who can stop the curse and bring back everyone's memories, including hers. But can she do it? (Note: this is not exactly like Once upon a time, there are some differences)