Question: Who is the director of Attack on Titan?
Sentence (from "Attack on Titan (film)"): In "Attack on Titan" Eren Yeager, his adoptive sister Mikasa Ackerman, and his childhood friend Armin Arlert, join the Survey Corps, a military corporation to fight gigantic humanoids called the Titans after their hometown is attacked by a Colossal Titan.
Relevant evidence: No