Chronos Ruler is a Japanese manga series written and drawn by Pon Jea. An anime series titled Chronos Ruler (時間の支配者, Jikan no Shihaisha, lit. “Time Ruler”) aired in July 2017. The story centers on “Chronos Rulers,” those who fight the time-eating demons that appear when people wish they could turn back time. The Chronos Rulers fight a time-manipulation battle against these demons.