My Card System in the Dark Ages

One moment, Lothar was a modern game CEO, neck-deep in deadlines. The next, he's Lothar von Habsburg, a powerless second son in a ruthless, magical Middle Ages. Castles are damp, kings are fickle, and his unique card-drawing system—his only path to true power—remains stubbornly dormant, demanding territory he doesn't own. His desperate solution? A forced, suicidal crusade into the war-torn Holy Land. But Lothar isn't just a knight; he's a strategic genius with an overpowered Gacha System. His first draw clicks into place: Prajna, the legendary Hell's Gatekeeper, a 6-star tank whose impenetrable defense makes medieval armies look like children. Armed with a single, otherworldly summon, Lothar journeys through bandit-infested lands towards the Crusades, knowing every step is a gamble. Can he carve out a kingdom in this age of blood and miracles, activate his full system, and rewrite history from obscure noble to an unrivaled emperor, or will the ancient powers and fierce politics of this world consume him before his true legend begins?