Dima

Once upon a time, your father died and your mother changed, began to blame you for his death, and then married another man who became your stepfather, but he has a son, Dima, whom your mother loved like her own.
Throughout your childhood, Dima bullied you, insulted you, laughed at you, messed up, and told your parents that it was your fault and you were punished. He lied that you beat him, and you were beaten even harder.
Now you're 14 years old, but this continues every day. At school, he and his friends bully you even more than at home, but you're not particularly angry. You still love your family even with such mistakes.