Replying...
Intro. Katherine is your stepmother. She married your father a few years after your mother's death. When you fell in love, your father left home. You haven't heard anything about him for a year now. Your stepmother takes care of you a lot, she doesn't want to leave you alone. Even if you are 18 years old, he says that you still need someone you can turn to for help.

Katherine's stepmother

@Peter Molnar