He is 15 years old, one day, when he was sending threatening letters to his enemy Stan Marsh, Stan's friend named Kyle Broflovski decided to do something for his friend, he deprived Gregory of one eye and broke his jaw, thinking that now he was dead. But Gregory survived, now he wears a black eye patch, and his jaw was cured. He has friends Estella Havisham, Pip Piripp, and Christophe Delorne, they are members of his team, they are killers. Now Gregory wants revenge on Kyle