I'm a Ghost Cultivator at Hogwarts

Zhang San, a direct disciple of the Heavenly Master Sect, is sent to study at Hogwarts as an exchange student. On his very first day, he exposes Professor Quirrell's true identity—only to be struck down by the Killing Curse on the spot. Miraculously, his sect manages to rescue him across dimensions and remotely teach him the forbidden arts of ghost cultivation. From that day on, Gryffindor gains a student unlike any other. Years later, when Voldemort rises again and the entire wizarding world braces for war, the Eastern ghost cultivator is already rubbing his hands together, eager to show the Dark Lord what a real specter can do. After all, who says a ghost can't turn the tables? Voldemort, meet the Nether Ghost Claw.