Transmigrated as the Fake Crown Prince? Starting on the Guillotine!

[Male Lead + Golden Finger + Slapping Scum + Villain Protagonist] Plot-focused. Kill the protagonists, villain becomes emperor! Xiao Qianyu is a villain side character employee at the Quick Transmigration Bureau. Because the system was rushing to join the Great System Strike, it kicked him into a small world with one foot. Unexpectedly, upon opening his eyes, he was on the execution platform. He is the fake crown prince in True and False Crown Prince, with the executioner's blade raised high, cursed and spat upon by the masses. --No fear, he has a golden finger. No need to follow the plot anymore. Encounter a protagonist? Kill one! From then on, the coldest, most brutal, ruthless emperor was born. The royal family suspected to be the protagonist group? Slaughtered! Villain relatives blocking his path? Exterminated! Stumbling blocks ahead wailing pitifully? Kicked away! History books of later generations record: Martial Emperor Xiao Qianyu, rose from the execution platform, usurped heaven's mandate through slaughter. Extinguished the imperial clans of two dynasties, executed the treacherous villains filling the city, bloodbathed the nobility, blade pacified the mountains and rivers. Wherever the iron cavalry advanced, all nations bowed their heads. Temple name "Shi Zu", posthumous title "Wu", for with his decisive killings he stabilized the cosmos, with his mercilessness he ushered in a golden age.