MTL - The CEO Is Cold During The Day, And Wants Kisses At Night! - Chapter 2 That man turned out to be him last night

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

Are you a crazy person who is utterly bored of seeing Shonen characters who know what to do at any point of the Series? And also the fact that there boring? Do you want to see blood and a ruthless manic character who hate humans? Or are you really a manic, like the mc to see blood scatted across the world as heads go flying left and right. Do you want to see a character raise up to be the greatest and actually put effort and hard work to raise up and not just get lucky and suddenly the MC is overpowered as fuck? Well I mean sure this guy is going to be overpowered at some point but the normal way well depends on what you define as normal.Sirus gets reincarnated as a demon in a fantasy world. Where you will see his loved ones die but also take revenge and does whatever he wants.... most likely. Sirus shall be known as The Great Demon King.After sheer effort and hard work unlike..... that Shonen character who didn't do shit.One day he will rule his own kingdom unlike any other Kingdom and he will do this with bloodshed or without it. And there will definitely be bloodshed, and flying heads or something.It will be a long journey but he will not fail! Of course, he won't because he's the protagonist, but life isn't a walk in a park so some shit is bound to happen.You're still here? Well go and fucking read the novel![Mature Language][Use Of alcohol][Gore, intense violence][Strong Language][Mature Humour][Abuse]Viewer discretion is advised] Mature 17+

A letter to break off the engagement leads Ling Family in Tangyang to endless doom. And he, Ling Zhang, is tortured to death after his legs are cruelly broken.

…but it seems pretty doable.