Zepia Eltnam Atlasia runs Atlas and serves as one of its Six Sources within the Fate timeline. Unlike his Tsukihime counterpart—the fractured entity known as Night of Wallachia—Zepia remained sane after becoming a vampire and never abandoned his post.
He's best known for his role as a surprisingly caring father figure to Sion. While the Tsukihime version lost his humanity entirely, this version maintained it, showing genuine concern not just for Sion but for humanity broadly. He even let her leave Atlas to help Chaldea fight the Alien God, which fans often cite as proof of his devotion. That said, there's speculation he occasionally enjoys putting her through difficult situations just to watch her stress—though nothing's confirmed on that front.
What makes Zepia fascinating is his constant mental processing of reality's infinite possibilities. He refers to these calculated branches as "scripts," treating the world like an elaborate play. The problem? There are so many potential outcomes that he can never be completely certain which script will actually unfold. It gives him an almost precognitive edge, though it's really just advanced calculation rather than true foresight. Despite this god-like perception of probability, he remains fundamentally a doting parent who loves Sion deeply.
Content compiled by AnimeList.moe from publicly available sources.
