It's Actually Not Easy Wanting to be a Supporting Male Lead - Chapter 4.5

A scientist, Duan Yixin, transmigrated into another world. She possessed the body of a sixteen-year-old girl but had not inherited any of her memories. With a broken marriage engagement and no money in her hand, she only wants to earn money peacefully. It's a pity that fate always plays tricks on people.When she thought she could finally live peacefully, she discovered that this world was not as simple as she thought. The man she rescued was the notorious ruthless general, and the woman who stole her ex-fiancé was the female protagonist of this world.She looked up at the sky and asked, “God, are you kidding me?”A few years later, on their wedding night, she stared at him and said seriously, “General, I'm not your white moonlight.”The man lowered his head and whispered in her ear, “Mhm, you are not my white moonlight, you are my life.”

This novel is also known as Endless Bloodstone / Infinite Bloodcore

In the dark night there is no light, save for the sound of war drums and rally cries. The young man listens carefully, it is his heartbeat and the flow of his own blood.

What hides in the darkness ahead? Is it man, god or… a monster?

There is no such thing as the best road. However, the journey beneath one’s feet is unbounded!

- Description from Novelupdates

Baek Ain is your typical lazy guy.

He graduated from university at age 22 with a random degree he chose out of boredom and stayed single because fate decided so until that event happened.

“What? Where Am I??”

After a horrible incident, Ain transmigrated to another world. Or precisely to be a villainous and mobs character.

He died countless times because of the world's protagonists, gathering hatred toward them.

“What the fuck! What do you mean I stole your wife? I've been single since coming into this world!!”

“Hero, please save this world.” A goddess is begging me to save her world from the Demon Lord.

“Wait... Begone thot! That Demon King is my younger sister from 69th Transmigration.”

“How dare you!”

A beautiful heroine is hugging me from behind, wishing to accept her feelings.

“Shoo, Heroine! I don't need useless baggage with me. Side characters are better than you!”

And so, Ain's journey began to end this shitty transmigration cycle.

Ling JingXuan, a secret international doctor and killer. Can save people with one hand and kill with the other. Right or wrong, both paths without exception would cause people to be terror stricken. One morning he crossed over, with only four bare walls for a home and was also given two free stir fried little buns. Ling Jingxuan can’t help but be speechless.This life, can this pit be any bigger?

Yan Chengrui, Qing dynasty’s only prince with a title of General. On his first mishap on a mission, a good man forcibly became a slave wife. There was no one who was not disappointed from the imperial family. But, don’t know when slave wife learned it but poison concubine’s poison was incomparable, who dares to try to straighten him out?

“What? 30 Wen? You’re robbing from people, so expensive!”

One day of the month of a certain year, Ling Jingxuan takes the two little buns to the market to buy living necessities.These five year old little buns after hearing the price have to hold back their red faces. Fried little hands rigidly held onto the broken wallet, Ling Jingxuan suddenly wanted to cry but had no tears. Sons, we earned money but not spending it, don’t tell me its left for the foals?

At the end, it was obvious they carried two liang of silver. Stuff that was sold at the last minute were the cheapest. Seeing the smile of satisfaction from the little fried buns, Ling Jingxuan secretly vowed. One day he would develop them into super meat buns，a rich 2nd generation family!

- Description from Novelupdates