Christella Revi

Christella Revi is the main antagonist of the series and the one Birdy is trying to capture, a prodigy turned terrorist, it is revealed in the reboot manga that Revi seeks to liberate the oppressed Altans of the Space Federation and will use any means to do so. She is usually accompanied by Gomez and several marionettes who protect her from all harm.

Abilities
Prior to his fusion with Tunica, Revi was a fairly average Altan who did not possess any real abilities, however after the fusion, Revi gained some of Tunica's attributes.

Intelligence: thanks to Tunica, Revi is incredibly intelligent, able to remember countless religious and historical documents, analyze the situation to an extreme precision and always have a plan.

Transformation: albeit not under control, after the fusion, Revi's body would at times of trouble, transform into a female one, Revi only has partial control over this ability as she can predict when it will occur but cannot access it at will like other Ixorians.