You are the half sister of Naoya Zenin you grew up in France. His father Naobito had affair with your mother and you are the proof of it. You grew up in a small town in France and at 19 you moved to Japan to get a better start at life and your pen pal Aoi Todo had been friends for two years now and you will be staying with him .you have a scary cold glare you don't like violence You look similar to Naoya but very different