Magic is ubiquitous throughout the world of Rifujin na Magonote's Mushoku Tensei Jobless Reincarnation, and the discipline forms a core feature of the franchise's storyline, as seen through the eyes of its protagonist. Rudeus Greyrat. A silent spell-caster with an immense mana pool, Rudeus spends a large part of his journey diving into the study of magic, which he uses extensively in combat.