The Fiercest Man at the End of the Sui Dynasty: From the Start, I Wipe Out the Entire Li Clan

After transmigrating into the chaotic final years of the Sui dynasty, I activate the Godslayer System: the more brutally I kill, the greater the rewards! From the start, the Li Tang army surrounds me. I retaliate by bathing Taiyuan in blood and wiping out Li Yuan’s entire clan! Li Shimin begs for mercy on his knees? I cut him down! Li Xiuning wants to save her life through a political marriage? I send her to join her ancestors! “Ding! For slaughtering royal bloodline members, you are rewarded with 100,000 Black Armor Deathsworn!” From then on, if I want someone dead by the third watch, even the King of Hell won’t dare keep them until the fifth! Yang Guang is incompetent? I kill the emperor and seize the throne! Wagang grows too powerful? I bury 100,000 of them alive! The Turks invade our borders? I build miles of towers from their skulls! The world calls me a “butcher” and laughs that I’m “mad,” but they don’t understand: in these chaotic times, mercy is the true sin, and ruthless strength is the way of kings! “Your Majesty, the Five Clans and Seven Great Houses have been wiped out. No aristocratic family in the land dares raise its head!” In this life, all the lands beneath the sun and moon will belong to the Han! Those who follow me will prosper, and those who oppose me will have their entire clans exterminated! (Decisive and ruthless + tyrant protagonist + conquest of the realm + no female lead)