His Obsession Began After Losing Her - Chapter 26: A Year of Shadows

What is it like to be a prison guard in another world? Thieves, pirates, assassins, con artists, terrorists… Werewolves, vampires, witches, necromancers, succubi…This is the Iron Rose Prison, where the most dangerous witches in the world are gathered.“I will make this the best model prison in the world!”said a prison guard who had been transported to another world.“Warden, someone has escaped again!”“Bring them back and put them in solitary confinement.”Today, is also a peaceful day on the Rose Prison.Warden: “I’m just trying to run my prison properly, how did I become a big shot in this world?”

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

Crying blood and tears, she pledged a poisonous vow. The gods did not fail her. She was sent back to a decade ago. The legitimate daughter of Jiang family returned from hell.

I have a childhood friend.