The Bird and the Wyrm - Chapter 69

It has been six years since the game to decide the world’s fate began. The strongest player, Hero King Kang Yoosung, who has never lost his first place as the top ranker, greets a new season. “It was… over for me a f*cking long time ago. I’m just doing this for the money.“ [Provocation stat increasing exponentially!] [The Clown Lord expresses satisfaction with contractor’s behavior!] The survival journey of a player with insane talent begins now!

Huang Dan’s pain nerve is innately different from the ordinary people. A little tore in his skin can cause him to sweat all over his body painfully to the point of him unable to make a word out.

Somehow, he began to cross world, following Mr. System to do the tasks…

In the first world, Huang Dan realizes what it means to die painfully and to live to die again.

TL’s summary:
MC suddenly transmigrated and is bind to a system, requiring him to solve mysteries. Born with a higher degree of pain sensitivity, he met different people in the different worlds and learns what kind of emotion smiling is.

- Description from Novelupdates

This is a story of a man named Kim Sae-Jin, who one day, inexplicably wakes up as a Monster. Follow him and his perilous journey to get his life back as a Human, all the while growing even more versatile as a Monster in the process. This should be… complicated, somewhat.