Stain (Hero Killer) Full moveis مترجم<br>Chizome Akaguro (赤黒血染 Akaguro Chizome?), known as Hero Killer: Stain (ヒーロー殺し ステイン Hīrō Goroshi Sutein?) is a villain that is notorious for having killed many pro heroes and is the main antagonist of the Field Training Arc.