Yu-Gi-Oh! XYZ Future Sight

Summary: One Day Natsumi Kato apears in New Domino City with strange Cards called XYZ Monsters who have many Powers. She has no Memory's and is in search for it. Do the dark Signers hold the Key to her Memory's? And How can she use Cards never seen by anyone before? Can she gain back her Memory's? And what has Yliaster to do with this? Only the Stars will know.