Quite a few Ranma cast are de-aged and sent to Hogwarts to escape the evil team of Akane, Ryoga, the fathers and others who use magical items to gain strength and want to kill them. They are tricked by Dumbledore so must prepare to fight Voldemort, training everyone but slytherens using lost training rooms to give them knowledge. Ranko and her friends are taught by Nodoka on magical cultures by transforming into different creatures such as Centaurs. (Harry Potter Crossover.)