Cold-blooded Undercover Master - Volume 1: Body Chapter 1 Scrap Picker Kong Yun

“My fiance has a change of heart. Your fiance isn’t in love with you. Why don’t we get together and get married instead?” Natalia spoke without a hint of irony to the mysterious man—the embodiment of elegance as the man stood at the entrance to the cathedral under an umbrella on a rainless, cloudy day.

After defying her family’s wishes to marry Vasili and agreeing to retreat from her budding modeling career, Natalia’s life turned upside down when her fiance abandoned her for another rising model from the same company on their wedding day. Amidst Natalia’s contempt, Alex Bruch came into the picture. Natalia thought her marriage with Alex, the man with blood-red lips and violet eyes, would be as mundane as asking each other what to have for breakfast...

Above all else, she would have her revenge.

There is always such a person in the world who likes to take their ex/Bai Yueguang/best friend as a stepping stone for their love.
These exes/Bai Yueguang/Girlfriends are called female supporting roles. They obviously did nothing. Just because they were involved with the male and female protagonists, they were trampled on, hurt, and even left a shadow that will never go away for a lifetime.
Jiang centrifugally felt sorry for those innocent girls, so he traveled from one world to another to help them cross that hurdle.
However, after a certain world, the mission is obviously wrong.
Jiang Li: “I will treat you well.”
“It’s not enough.” The girl imprisoned Jiang Li in her arms, breathing warmly: “Don’t leave, you must always be good to me, only to me.”
Jiang Li: ? ? ?
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Finely divided slice attack x natural sweet and soft feeling
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World One: Campus
The taciturn facial paralyzed “bad girl” x the rich lady who is cold on the outside and hot on the inside
World II: Cultivation
Swordsmith x Sword Spirit

World Three: The World of Beasts
Orc Princess x Totem (Big Cat x Little Rabbit)
World Four: Game of Death abo
Tsundere Big Brother x Super Rookie (Double O)

World Five: Spirituality
Ghost King x Rookie Celestial Master
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Edible guide:
#1v1 Unshakable
#Su Shuangwen, everything is for Su Shuang
#gongjing is divided into slices, being indifferent to others, sweet and soft to attacking

Content tags: system sweet text fast wear cool text
Search keywords: protagonist: Jiang Li ┃ supporting role: a lot ┃ others: fast wear, system, sweet text, mutual favor
One sentence introduction: you are sweet

- Description from novelbuddy

A striking man of mysterious origin and peerless talent, he looks back at the world, in all its entirety, with utter disdain. And yet, in the treacherous and unpredictable ultimate formation of the Boundless Secular World, he guards a breathtaking ancient qin with broken strings, waiting silently for the destined one to arrive!

A boy encounters him, and knows for the first time that the world beneath the Heavens is a fickle place. Not even demons, devils, ghosts and monsters can match the frivolity of human nature!

A slender physique, and jade-like beauty, but the sword that strikes between heaven and earth is not unlike a streaming rainbow!

The vastness of the starry sky, the seven emotions and six desires! Greed, anger and ignorance! The teachings of Buddha will grant you boundless strength!

A sea of blood will come, at the cost of all mortal beings full of honest hope!

The ghosts wail as the gods roar, but the sea of blood has no end!

Where, pray tell, is the path I should take?

Since there is no path, no matter how bitter and bloody the sea, even if my boat is made out of bones, I will soar to the heavens above!

- Description from Novelupdates

Junseo thought he was just installing a chill farming sim to de-stress after another soul-sucking shift in Seoul. Grow some crops, raise a few cows, maybe romance an NPC—simple stuff.Then he woke up inside the game.In a new body. In a suspiciously sexy world.With a system that thinks “breeding” is more important than breathing.And a robot waifu guide who takes everything way too literally.Now he's stuck in a countryside hellhole with zero skills, zero tools, and a suspicious loaf of bread. His only goal?Survive without accidentally triggering a hentai side quest.Too bad the game has other plans.Too bad the villagers are way too friendly.Too bad the only way to unlock skills... is by combining everything.He just wanted to grow carrots.Now he might end up marrying half the village.Tags:Transmigration,Harem (slow burn),Comedy,Slice of Life,Farming Sim,Adult Themes (18+),System,Self-aware Protagonist,Kingdom Building,No Overpowered Skills,Robot Waifu,Skill Fusion and Lewd but Smart