Marvels Warframe: The Tenno

The Tenno, an ancient warrior caste from a long forgotten age, the first cosmos, a time in which only one universe existed, where time was not linear where past, present, and future were all as one, a time of a powerful empire known as the Orokin, and their great warriors, The Tenno.

But what happened to this age, what happened to these warriors, and what happened to this empire, what happens when the Tenno are reborn and ancient enemies, Sentients, Grineer, Corpus, Narmer, they return for Tau, that is this story.