I am that male friend in the harem story - Chapter 147: Never changes

In this world, orphans or just anyone without any hope for this world can apply to become a “walking target”. Their sole purpose is to be a practicing dummy for the students of the sect who train to become “Demon Hunters”. These students need “walking targets” to test their training on living, walking beings of flesh and blood.
In exchange, they will be provided with food & shelter.
Their existence value is lower than a slave, but if they manage to survive a few years they can receive a life long pension.

Xiao Han is such a “walking target”. One time he witnessed a powerful Demon Hunter disposing a demon. When the demon died, a fragment of the demon that managed to escape entered Xiao Han’s heart. No one saw that, and even Xiao Han himself only felt some discomfort for an instant.

But that thing in his heart soon gave Xiao Han visions, and the first one is of a cultivation method which allows Xiao Han to absorb damage to enhance his body. A perfect cultivation method for a “walking target”.

- Description from Novelupdates

Having trusted the goddess who promised my return to Earth, I joined the hero's party and defeated the Demon King.So when that promise was not fulfilled, it was only natural for me to desire my own fall into darkness.Harem | Fantasy | Sex | R18 | SMUT

Yan Xi, a medical prodigy who obtained a doctorate at the age of 22, never expected to end up transmigrating into a novel. Her husband was the female lead’s fourth brother, Gu Shen. He was a bigshot in the business world who had suffered from disability from a young age and could only move in a wheelchair.

However, he was a handsome man full of schemes. Yan Xi became the cannon fodder wife of a bigshot in the business world.

Her first love, Zhang Ming, had stabbed her husband’s subordinate with a knife.

To force Gu Shen to release Zhang Ming, she had unhesitatingly to stab herself to threaten Gu Shen.

Eventually, Gu Shen released the man and gave her a large sum of money.

She took this money and eloped with Zhang Ming.

After that, Zhang Ming planned for a car accident that ended her life as they hit the road, which allowed Zhang Ming to conveniently take her money and run far away.

When she transmigrated over, Yan Xi found out that she had just stabbed herself with a knife and was in the critical stage of deciding her future fate! Therefore, when Gu Shen threw her the divorce agreement, Yan Xi decisively refused.

“Hubby, I won’t divorce you.” Gu Shen was surprised by her change.

“Have you thought it through? I’ve left you some real estate and cash. It’s enough for you to live comfortably for the rest of your life.” Yan Xi revealed a confident smile.

“I’ve thought it through. Zhang Ming stabbed your men with a knife. You should hand this matter over to the law. I won’t interfere anymore.” The surprise that Yan Xi’s change brought to Gu Shen did not end there.

After that, she tore off the mask of her hypocritical best friend and calmly dealt with her scheming family members.

She personally treated Gu Shen’s chronic illness for many years. Bit by bit, she managed to shock everyone around her who was once prejudiced against her.

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.