My System Upgrades My Barony

Transmigrated as Leo, the new Lord of a crumbling barony, he faces ruin. His inheritance is a joke, his treasury empty, and a forced duel against a powerful rival threatens his last village in just three days. He's a dead man walking, destined for absolute humiliation. But fate has a twisted sense of humor. A 'System' awakens, granting him the power to devour monster crystals and instantly level up his strength, speed, and combat skills to terrifying heights. Better yet, he can upgrade his pathetic militia into battle-hardened knights! In a whirlwind of newfound power, Leo's rise is swift and brutal. Yet, the true cost of his system's power, and the forgotten truth behind his family's 'demon bloodline,' remains shrouded in mystery, waiting to consume him as he plunges deeper into the continent's thousand-year-old secrets.