After he and his entire class died on a field trip, Odamori accepts a job offer from a mysterious man to be reincarnated. However his new job turns out to be that of a 'Slavemancer', with the power to dominate the minds of others and turn them into his toys. Soon, however his evil actions lead to a Princess Knight (who turns out to be one of his previous, more popular classmates) being dispatched to apprehend him. But Odamori of course has something different planned for their reunion