Merag

Merag is one of the Seven Barian Emperors appearing in Yu-Gi-Oh! ZEXAL anime.

Etymology
Merag's name is derived from Delta Ursae Majoris, also known as Megrez.

History
In a past life, Merag lived as a human until her death and an unknown number of years later was reincarnated as a Barian, with no memories of her previous life. Merag would join up with several other humans who had also reincarnated as Barians as the Seven Barian Emperors, plotting with them to destroy the Astral World. At some point, Merag and the Barian leader Nasch were killed by their fellow Emperor Vector. However the other Barians were not privy to this knowledge, as Dumon had believed Merag and Nasch had simply disappeared one day.

Legendary Number War
Later during Shark's Duel with Abyss, Dumon and Astral saw Shark's past life, leading Dumon to suspect that Shark and Rio were Nasch and Merag, respectively. Dumon comes at the hospital where Shark visited Rio, to make him Nasch again since he has suspected both to be Nasch and Merag.