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When the Dark Knight obtained a system plug-in, he discovered that the power itself was the deadliest trap. Bruce Wayne died in the final battle against Barbatos, the god of the dark multiverse, but was accidentally reborn in the Marvel Universe and bound to the "Dark Knight System" - an interdimensional artifact that can extract countless Batman transformation abilities. Starting on hell difficulty? No, it's the opening game of gods. The shadow of Gotham spreads across New York, the claws of the Court of Owls whisper in the darkness, and the light of the Infinity Stones is about to light up Thanos' ambitions. And every power generously given by the system - the divine power of the Hell Bat, the creation of the will of the Dawn Lamp, the crazy wisdom of the Laughing Bat - planted the seeds of darkness from Barbatos deep in his soul. "Become my avatar," the whisper of the system echoed in your mind, "or watch this universe burn." But he's Batman. His strength has never been superpowers or alien technology, but his unyielding will and complete preparation against all threats. Thus, an intellectual game spanning two universes begins: When Thanos' snap of his fingers is about to begin, when Barbatos' true body arrives across dimensions, when the system finally tears off its mask of hypocrisy-- Standing on the ruins of two worlds, Bruce Wayne uttered the oath destined to become a legend to the dark god who tried to control everything: "You made a fatal mistake - you thought you could control me by giving me power." "But Batman's greatest power has always been to turn God's best plans into a complete nightmare."