Dxd: A demon Among Devils - Chapter 29: []:

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

18 and naive, Belle Hart thought marriage would end her misery, only to realize it had just begun!What started as a promising love turned out to be a facade, would Belle choose between a second chance or leave? She met her mate, the Duke, who she proposed to when she came of age.A month in, things took a turn. The Duke leaves for war before she could inform him about her pregnancy, only for him to return with a mysterious woman whom he claimed to be his new wife! The audacity! Trouble ensued and Belle suffered a miscarriage as a result.…“What did you just say?” He asked, his gaze darkening.“You heard me well, I seek a divorce. I wish for us to go our separate ways,” she replied, her voice steady as she met his gaze with confidence, though inwardly she was shaken by his presence.“You are my mate, Belle, and I am yours. Divorce is the most foolish notion you could entertain. Do you believe any man would take a worthless creature like you as his wife?” He scoffed, his words biting, causing her heart to ache.…The Duke's refusal pushed Belle into the arms of the king. All she had to do was bear him an heir and he would help her get her revenge!“I want you to marry me, Your Majesty, and aid me in seeking my revenge against the Duke and those who have wronged me. In exchange, I shall bear you an heir before you help me,” she said, her voice steady and full of purpose.What will the choice be?

Sheng MuMu was transmigrated into a novel.

While others transmigrate to become celebrities, she ends up becoming a stepmother to a 17-year-old young master of a prestigious family?!

She wants to escape! But wait, what’s this? Pretending to be his wife for a monthly allowance of 500,000 in pocket money that can be freely spent on her card? Suddenly she doesn’t mind so much!

Everyone guesses: “She’s just a stepmother, how much could he really care for her? President Qi just brought a woman home to take care of his son.”

On the day of the banquet, surrounded by the media, Sheng MuMu hooks her arm around the man’s neck and sweetly calls him: “Dear~”

The man’s eyes darken as he pulls her slender waist closer, naturally dispelling the rumors.

Then people say: “She’s just a brainless trophy wife, just a pretty face.”

Sheng MuMu: “You dare call this 700-scoring top-scoring beauty from the city just a trophy wife?”

She opens a flower shop, becoming an internet sensation with people lining up to take photos, earning pots full of money; she starts a brand, appearing on the cover of financial magazines’ annual rankings.

And after that…

Tsundere stepson: “Better than a real mother.”

Vicious mother-in-law: “Daughter-in-law, when are you taking me square dancing?”

Until one night, Sheng MuMu’s earlobes blushing as she pushes away the man pinning her against the wall.

“President Qi, our agreement is just a contract marriage. ”

The man’s eyes narrow as he loosens his tie and leans down:

“The agreement? I tore that up long ago.”

Sheng MuMu: “You…mmmph”