Can someone give me the tldr on his backstory

his father was a drug addict and alcoholic and would beat the shit out of him and his mother. Hence, his mother left them afterwards he would steal bread and milk from a coach and one day he was cought by that coach who saw jaehyung's condition and suggested to learn boxing and earn money and the coach and his mother used to provide food for such kids too so he started learning boxing after some years his father died from excessive drug use. When he called his mother, saying he was gone you can come back. We can stay together his mother said that she had remarried and it's better if he doesn't contact her anymore.