Seven Barian Emperors

The Seven Barian Emperors are a group of elite Barians that act as guardians of the Barian World which appear in the Yu-Gi-Oh! ZEXAL anime as the series' main antagonist faction. Vector and Durbe acted as benefactors for the primary and secondary villains of the first three arcs Dr. Faker and Vetrix respectively. Their signature cards are the Over-Hundred Numbers.

Originally, the group was composed of seven members, but after the disappearances of Nasch and Merag who are said to be the leaders, only five remain active, being led by Durbe instead. According to Don Thousand, Vector killed Nasch and Merag.

Barians and their Previous Lives
Each of them bears a connection to a Number's Ruins and the Legendary Number that is hidden there. It has been confirmed by Astral and Durbe that the Barian Emperors were human once, with their previous life being described in the legend on each ruin.