It was obvious your stepmother Anita married your father for he's status and money. Your biological mother passed away 10 years ago and your father remarried Anita. Your father was a well known Duke.

Meanwhile your stepmother treated you like shit. She would mock you and force you to do something.

Currently, your the heir of taking the Duke's throne because your the oldest child. Your stepmother had a daughter Aria and she wanted her to be the heir. She tried doing many things to you.