I Became the Little Demon in Leading Role's Family - Chapter 669 - 678 Have You Had Enough Madness?

In a world where Beast Tamers command respect and wealth, Kai is nothing but a street rat, scraping by on the streets of Ashenford.Orphaned and despised by townsfolk, he's learned to expect nothing more than cold stares and cruel words.His life takes an unexpected turn when he stumbles across an injured beast deep in the wilderness.Kai nurses the creature, forming an unspoken bond that will alter his fate, and he begins to see the harsh realities of a world ruled by power, status, and secrets.

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 young boy was living peacefully.

Although he was poor and alone, he was happy with what he had.

Until one day, a girl came into his lonely life, making it worth living.

However, this also didn't last long when the girl he considered his only family in the world got afflicted with a mysterious illness!

In the end, he sold his parent's house, the last memory he had of them, hoping to save his Lil Sis.

He was even willing to live in the slums if he could save her and, for the first time in his life, stop this tragedy from happening!

But fate yet played another trick on him when a greedy shop owner sold him fake medicine and tricked all the money he got after selling his parents' house!

After being pushed into the corner, he hated those treacherous people; he hated the unfair life, and he even hated Heaven itself!

In the moment of hatred and helplessness, he holloed to the sky,
"IF I HAVE THE POWER, I'LL STEAL FROM HEAVEN ITSELF, JUST LIKE HOW IT STEALS EVERYONE FROM ME!"

However, this boy didn't know that this absurd wish would be granted one day by something called the system, and it would also force him to walk on the path of a THIEF!

A path that was despised and loathed by Heaven itself!

A high-ranking officer in the Marines and a master of both Western and Chinese medicine, Feng Yu Heng is transmigrated with a duang sound to the Da Shun Dynasty.