Fairy Tail: Lucy the Heiress

Lucy Heartfilia is the new heiress of life.
Her mother, Layla Heartfilia, was the Queen of Life.
For Lucy to become the queen she has to train with every known and unknown magic.
Everybody is out to get her. Her power is unbelievable.
It is said if someone can convince the Queen or Heiress of Life to rule with them they can either corrupt her or help her bring peace.
She is the last heiress and is the most powerful being alive.
She cannot unlock her powers and regain her true memories unless her best friends betray her and break her heart.
Her real father is waiting for her to unlock her powers.
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Somebody gives people who are partying for Lissana's return a potion to hate Lucy.
Everybody can see what they are doing but can't control or say what they want to they can only watch what they do to their fellow guild mate. They wish not to do it, but they must and are helping Lucy indeed with the process of learning about her true self.