User blog comment:Zoroark555/Who Is Your True Buddy?/@comment-5397676-20160329210807/@comment-25600444-20160329222142

Yes it is from Code Geass. To be short;

Maddog's Avatar is that of Lelouch, the main character of Code Geass

Zero is the name associated with the disguise he uses when doing his Terror-rific Vigilantism against the world at large.

Basically, Lelouch is Bruce Wayne, High School Pink Eye Prince in private and personal life, Zero is Batman with guns and mechs and Magical Boy Pink Eye to the public and his enemies.

Erational is basically Zero incarnate, design, attribute and all.