Menial Disciple's Orb Revenge

Menial servant Ian Young suffers humiliation. Obtains a devouring Spirit Orb, cultivates. Accepted as Personal Disciple under Sterling, he discovers his master refines people and plans to refine him. Elder Lyon teaches him thunder cultivation. Finds clues about parents' murder, identifies Grand Elder as mastermind. Ian gathers evidence, confronts Grand Elder, triggers thunder tribulation to break through, defeats Grand Elder, avenges parents. Eliminates evil elements within the sect.