Jellal Fernandes

Jellal Fernandes is the main antagonist in the Tower of Heaven arc, and later one of the main protagonist of the anime, and also one of founders of Crime Sorciere along with Meredy and Ultear Milkovich. Jellal is a childhood friend of Erza Scarlet that when he lost his memory he became a Dark Mage who in a disastrous manner tried to free Zeref Dragneel through the R-System. And later when Jellal regained his memory he soon became the leader of the Crime Sorciere, a guild that seeks to destroy Zeref as a rescue path.

History
Jellal was a child who along with Erza and other children were abused by the men of Zeref cult, Jellal then after being fooled by Ultear, managed to escape and had his personality changed and more violent, which he was obsessed with by the R-System. Jellal also used his Siegbrain copy to infiltrate the Magic Council. And when he saw that Natsu and the others were coming, he immediately called the three guild riders: Trinity Raven, who are Vidaldus Taka, Ikaruga and Fukuro to bring them down. However, the trio was soon defeated by the protagonists. Shortly afterwards when Erza approached she soon saw Jellal who revealed that he and Siegbrain are the same person, and tried to attack the Magic Council after its farce was revealed. He then fought Erza, Natsu and Gray. Jellal later kills Simon, and eventually ends up being defeated by Natsu, and reportedly.