The three-way battle has become an all-out melee! The Monster Protection Society's Head Director Yakushi has become the Great Monster Deathmecia, flaunting an overwhelming power that surpasses even the Dragon Keepers. As for D, he's stuck in Juji's dream world, struggling to find a way out so that he can confront the fraud masquerading as the greatest monster! But more than one barrier may stand in his way...