Great Qian's Fiercest Man: Starting with a Crisis of Heirlessness

Setting: The fictional Great Qian Dynasty, a chaotic age of warlords vying for power.

Gu Yuan transmigrates into the only “sickly weakling” in the Marquis of Dingbei’s household in Great Qian. The moment he opens his eyes, he receives a diagnosis declaring him incapable of having heirs: if he cannot produce a son within three days, his title will be revoked and his entire family exiled! In these chaotic times, losing his title means certain death. Fortunately, the Tyrant System awakens in his mind: kill one person to gain strength, sever a finger to earn a hundred gold, and show mercy at your peril! Gu Yuan looks at the hall full of uncles eyeing him hungrily and grins. If this world plays by no rules, then he’ll become the most ruthless tyrant with no heirs!