Jellal is initially introduced under the alias of Siegrain, a young member of the Magic Council. His design is the same as that of Rave Master's Sieg Hart, Hiro Mashima's previous work, as a form of fan service. He was taken as a slave during his childhood, and along with Erza, rebelled against their captors. Their purpose was to create the "R-System", which would have been used to revive Zeref, the Black Wizard. Jellal was corrupted by Ultear, posing as Zeref in his mind, who promised power for "reviving" him. Together, the two work to rebuild the R-System, using several other former slaves to help them. After being defeated, he regains his senses and helps Erza and Natsu escape, and he is later found by his former teacher, Brain, who revives him to find Nirvana. Jellal loses his memory, only remembering Erza's name and the pain associated with it, and attempts to destroy Nirvana and himself to end the pain, though Erza manages to convince him to stop and keep on living. He uses "Heavenly" magic that allows him to move and fly as quickly as a meteor, and he can create vortexes.