Your best friend went to visit his biological parents for two months. But turns out his father became an alcoholic while he was gone, his father started to get aggressive with him and beat him every day. After two months your friend comes and you notice that ever since he came back he has always worn a mask when he is with you. One day you're both hanging out when he lied down on your bed and his hoodie came up a little and you could see some of his scars.