Kisa Sohma
From Animepedia
A young 12 year old little girl who is part of the Sohma family and was born with the curse of the tiger. Kisa was beaten up by Akito Sohma, the head of the family, and took 2 weeks to fully heal. Hiro Sohma grew distant from her from that incident and that was when she was being teased in school for her hair color and eyes. She ignored it until everyone didn't speak to her and laughed at everything she said. Kisa then stopped talking and never spoke to anyone. She then ran away from home and was found by Hatsuharu Sohma in her tiger form.