Explantion (chapter 1)

Y/n has multiple quirks. In total she has 10. She has to learn how to control all 10 in order to go back to the Castle and stop her Stepbrother from destroying the peace. She was once a princess but she left that life to start a new one along with her mother. She attends UA to train. She makes friends. She finds out there her quirks that Deku is her brother and the king isn't her real father. She tries to find her and Dekus and her sisters father. She soon joins the LOV to take down the King and her evil stepbrother. But is she able to stop them before he becomes kings?