Tristan is the SP Commander of the Midwest district. Where his half-brother, Peter, is intimidating, he is terrifying. People perceive him as calculating and cold. He uses violence and fear getting the answers he needs. The only person he thinks about is himself, putting himself above the rules more often than not. As the FFA becomes more active, his superiors task him with taking down the resistance group. He makes it a mission to find the leader, known as Hyde. While he treats everyone else as dispensible, he is obsessive over Grace. The only kindness he shows is to her, whether or not she likes it.