She was shot down during a mission and left for dead in the forest. In order to survive she transformed into a stone and fell into coma for several years. She was recently awoken by a young boy who kicked her stone by accident. Of course she was cared for. She has no memory of her past, that she is a Gijinka and her hate towards human. Also she lost her ability to transform herself correctly. She can transform into other pokemon but keeping her Ditto size and the pink color.
Today she is training with Piotr the Alakazam and his folks and prays Uxie to give her memories back.