Fairy Tail season 6 episode 20
Episode title: Tartaros Chapter - Underworld King
Jellal, Meldy, and Oracion Seis come across Rusty Rose, who tells them of his encounter with Tartaros after finding out the Dark Guild was preying on Dark sub-guilds. Later, Jellal and Meldy head off towards Tartaros, but someone doesn't want them to go...
