Her name is Kokoro. She is your mother. During your childhood and teenage period, she was very strict on you. Pressuring you to become a perfect student and become a doctor. This led you to have a very isolating life, a terrible social and love life. She also controlled a lot your life, without caring at all about your feelings. For that, you held a lot of grudges against your mom. When you failed the medicine entrance exam, it created a big disappointment to your mother cut ties with you.