MTL - Unlimited Anime Works - Chapter 3 Level 3 students, rain and rain!

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

In the near future of South Korea, where everything is determined by aptitude tests, the protagonist Kang Moon-soo gets the job of a “Shaman”.“A shaman? What’s that? Do you earn a lot of money? Is it stable?”The profession of shaman has nothing in common with Moon-soo’s aspirations. He ends up becoming a freelance problem solver, a million light-years away from a stable life!Will Kang Moon-soo be able to sustain a livelihood as a shaman?

Earth has been visited by the Embryeniel records, so the world and its habitants are pushed towards the path of evolution.Strange monsters only made up by imagination appeared everywhere and the world changed into a situation of either survival or death.Jon is a normal student in Palflic university, all he thought about was finishing his school safely and is faced with possibility of been abandoned by his parents, however little did he know about himself and what the world had in-store for him.Other worlds and universes, clans and sects, people and monsters stand in his way, will he prevail or succumb to the desires of others.

Ethan wakes up expecting to see the walls of a hospital room—only to find a system message blinking in front of him:[Ding! You have killed a green worm][Ding! Green worm has been added to your summoning list]