Tsu grew up at a farm called Grace Fields and the farm was in a demon world. She tells no one about her past. The farm would feed children to demons. There she was known as Gilda. Her old friends who she lost were Don, Ray, Emma, Norman, and many others. She has a feeling that the friends she lost were near her and in her class. She thinks Izuku Midoriya is Ray, and Ochaco Uraraka is Emma. She has secret glasses in her room that she tells no one about.