MTL - The Legendary Mechanic in Marvel Universe - Chapter 50 found it

Lin Xuan was transmigrated to a fantasy world and had a one-night stand with the powerful Ice Empress.

[R18 novel with a lot of sexual content]Artem never expected to take on the role of a villain, let alone transmigrate between harem novels. Bound by a system, his task is clear: steal the heroines from all the protagonists’. From Chinese Cultivation and Korean Gate to Japanese Isekai Fantasy, VRMMORPG, and beyond—no heroine is off-limits, and no protagonist is safe!

The pond fish crossed.
Dressed as the only daughter of the once beautiful city master of Baicheng, now the male protagonist is going to be his wife.
There are appalling criminal records such as poisoning the heroine, assassinating the villain Bai Yueguang, and humiliating the flawed and sick villain.
In the opening situation of this hell mode, the first task released by the portable system is: – Save the world.
Chi Yu said solemnly: “It seems that my life is to be a hero of salvation. The road is long and long, and I will search up and down!”
More than ten minutes after taking the oath, she was crushed by the villain, the Great Demon King.
…
Chiyu: “???”
To fuck me on purpose? Is such a difficult copy still necessary? Is the garbage system thinking about P eating!
“I’m dead, and the whole text is finished and sprinkled.”
System: “No, you can revive infinitely until you complete the mission of saving the world.”
…
After half a month.
Chi Yu met the villain, the great devil again, and was pierced through his chest with a sword.
Two more months.
He was held in the arms of the villain, the great devil, and used as a shield for human flesh.
Chiyu: “…the mouth is fragrant.”
Five years later.
Chi Yu, who endured humiliation and was disabled and determined, successfully revitalized the love line of the original hero and heroine CP, which rekindled his fighting spirit, suppressed the villain, and saved the world.
After the incident, the clothes went away, and he hid himself deeply in the name, and “died” in the war.
…
However, her “death” collapsed across the board.
The Great Demon King ran wild and slaughtered the world.
System: “…We don’t know what went wrong, let’s do it again, shall we?”
Chiyu: “@#￥ system, you don’t have a mother.”

PS: Don’t look at the brutality of the copywriting, this article is 1v1, the love line is sweet and petty without abuse, the plot is Su Shuang sand sculpture (special settings, except for a little bit of abuse of the heroine)
The male protagonist does not have Bai Yueguang. The first generation only likes to do things, and the second generation only likes Chiyu.

Content Labels: Ability Sweet Text Shuangwen
Search keyword: Protagonist: Chiyu ┃ Supporting role: ┃ Others:

One sentence introduction: I save the world by being a demon

- Description from novelbuddy