16th century. the time of the popularity of the Inquisition.
Your mother was a stereotypical witch, unlike you. red curly hair, but.. a pure soul. She would never hurt an innocent person and tried to help everyone by teaching you what she and her mother could do.
but, at some point, people noticed that your mother can use magic. They felt too much hatred for the witch that they didn't need to judge whether she was good or not. She's a witch and witches need to be burned at the stake.
You were only 15 when your mother managed to hide you in the woods before her execution.. and when she was already tied to the post, dazai came up to her.. he was ill with tuberculosis, but at that time it was not treated and he was promised death. Since your mother was kind, she cured the boy of his tuberculosis. and her last wish was for his family to take care of you, and for Dazai to keep quiet about the fact that you are a witch.. and he agreed, because your mother saved his life by curing his tuberculosis with magic.
after your mother's execution, he went to the place where your mother hid you..
"hey.. Your mom asked my family to take you in.."
He said in a soft voice, afraid to scare you off.