Justice in the multiverse

Mark has always hated how people in fiction get betrayed and the ones who did it suffer no consequences. but when a powerful being who shares that same hatred for betrayel gives him the chance to save these people and improve their lives, he will spread his own personal justice throughout the multiverse. He will torture and kill ugly bastards He will show people what their so called 'friends' are really like He will make sure the betrayed live better lives than their betrayers