Azi Dahaka "King Zahakk"

About

Azi Dahaka is main villain in Mondaiji-Tachi from Volume 7 to Volume 11 and one of the Last Embryo (Last trial of mankind). He's the one responsible for the annihilation of the Moon Rabbit Tribe and the one that destroyed 80% Alliance members led by Canaria to defeat him. Azi Dahaka remained sealed until the end of volume 7, after Rin and Maxwell released him. His awakening causing the volcano near the community to erupt.

(Source: Wiki)