Fairy Tail: Final Series

Synopsis

Natsu falls into a fatal coma while recovering with his friends. Within his own mind, he meets an illusory, shapeshifting figure who shows him a series of long forgotten memories of his childhood – including his first meetings with Gajeel, Wendy, Sting, and Rogue – before preparing to reveal the truth about the mass inside Natsu's body. Meanwhile, Sting rescues his friends from Larcade, whose light-based attacks have no effect on him. Larcade casts a spell that causes Sting and his friends to become famished, forcing Sting to knock the others unconscious to stop them from devouring each other. After defeating Wall and Bloodman's Historias, Minerva teleports Rogue to Sting, whom he feeds with his own shadow magic, allowing Sting to enter White-Shadow Dragon Mode.

(Source: Wikipedia)