Talk:Story and History/@comment-24110632-20131030111906

The Corpus already existed before the Orokin Era, as you can encounter some Jackalls in Dark Sector and I remember seing a "We are the Corpus" written somewhere, the Corpus seems to be working for the Agency.

Then, the Corpus would consider the Tennos as "Betrayers" because they group them with Mezner who betrayed the Agency.