City of Sin - Book 8, Chapter 88

The first-ever virtual reality game, New World. {The time has come.} {Synchronization starts.} That marked the beginning of the catastrophe. As the game became reality, the Earth began to crumble. However, there was hope. All-Master Jeong-hoon, who had survived until the very end, was just one step away from finishing the game. “Gah!” But ended up being betrayed by his comrades. “Should I say, from the moment you said you wanted to end this game?” The reason for their betrayal was simple, if the game ended, their power would disappear. The moment they thought it was all over. [An unknown mysterious force is protecting you.][An unknown mysterious force is sending you back to the past.][Warning! The system attempts to intervene… failed.][Warning! Warning! The system attempts to intervene… failed.][Warning! Warning! Warning! The system attempts to intervene… failed.][An unknown mysterious force dissipates.] Thanks to that unknown force, he returned to the past.

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

“Even death can't stop me from reaching the top.”Alex clawed his way to the top through sheer hard work and ruthlessness, only to be betrayed by someone within his own group.Although he managed to kill the traitor, he lost his life in the process.But just when Alex thought it was the end, fate had other plans for him.Reincarnated into the world of a novel his girlfriend used to read, he was given a second chance at life.His goal remains the same, but this time, he awakened a mysterious system and surrounded by a harem of alluring beauties.Follow Alex journey through this vast new world as he uncovers the truth behind his reincarnation and the otherworldly goddess who made it all possible.

Liu Duo was a young girl whose grandmother sold her to four brothers with the intent to be a bride. Unwilling, she ran away the following night, only to fall unconscious while trying to get away. Unexpectedly, however, she was reborn with the spirit of a 25 year old woman, also named Liu Duo.

- Description from Novelupdates