The Simple Life of Killing Demons - Chapter 9Book 12:

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 his first life, Victor was lazy, poor, and the ultimate gambler, but the Goddess of Envy gave him a chance.

[ Die and go back four years into the past to restart your life. ]

Victor lost all hope and killed himself, and so began his second and also the most miserable life.

He became rich and successful but soon his girlfriend betrayed him and took away all his fortune, having decided on a desperate act Victor came up with a plan to avenge himself.

Although his plan was successfully executed, Victor hoped that this time he would die once for all and forget the despair that followed him through his two lifetimes.

Yet as if to deny him of his salvation, he suddenly heard a feminine voice once again, but a different one this time.

[ Goddess of Lust, surprised by your actions, grants you a gift ]

[ Yandere system activated! ]

It was a turning point for Victor.

From now on whether it is a Goddess, a Vampire or a Succubus, no matter who it is I must seduce you or I will surely die this time!

He Zening had always felt that novels depicting the life of a Company President were good for passing time, but insulting to the IQ. Still, having read countless novels of this genre, never did she imagine that someday she would transmigrate into one of them. To make matters worse, the plots were so similar that she could not remember which novel it was. She was left with no choice but to assume the role of a secretary to the President.

The secretaries in novels ran errands for the President, assisted him in pursuing women, helped him keep the flames of love burning, and even took the blame for him if necessary. But a real-life secretary? They were blamed by those in power, sometimes hurt and reprimanded wrongly.

If it were not for the excellent pay and necessity, she would have already bolted out of the door. And like all curious bystanders, He Zening wanted to see the plot happen before her eyes; the President meeting the protagonist! A villain standing between the love of the leads! The side characters!

This is the second life of a level-headed, diligent secretary working hard to achieve a carefree life, whilst being dragged into the plot.

- Description from Novelupdates

In the winter of Taikang Year 3, a girl pays a visit to her future in-laws, the Ning Family of Beiliu, Yangcheng.

After her engagement was denied, the girl decided to hang herself in front of the Ning Family to show them her sincerity.

When the girl who had died opened her eyes once more, many people’s fates were changed forever.

- Description from Novelupdates