M3: Sono Kuroki Hagane Episode 17 English Subbed Episode Title:Light of the Lightless.Episode Description: Akashi remembers the sin he had committed once upon a time in the Lightless Realm. Tsugumi's intent was to seek revenge against the eight children, including Akashi. The Corpse has now revived and starts to overpower Mahmu and Minashi with Tsugumi's anger and insanity. Akashi rushes over to the Argent in order to stand up against the Corpse. The roar of the Reaper echoes alongside his strong desire to seek salvation for Sasame.