Subaru Natsuki arrives in Chaosflame to win over Divine General Yoruna Mishigure—only to wake up one day in his younger body! The one responsible for his transformation proposes a game of hide and seek spanning the entire city, settting off a new spiral of death. As he desperately races through the streets, Subaru finally confronts an unforgivable sin and decides once and for all how to deal with Louis!