Hook, Line, and Sinker

Jet Swanson is a hunter who was forced into retirement due to sickness. He recovers, but his life is thrown into a downward spiral by the government of Vale. Now a teacher at Beacon by day and by night a revolutionary, Jet continues on his path until he runs into team RWBY. Watching them struggle as he once did, Jet becomes a mentor-and risks undoing everything he's worked for. OC.