Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 15 - 15-36. Divine Punishment (5), The Forbidden Knights

Changqing has always felt that she’s incomparable to Guan Ying in every aspect. Even though she is pretty and has a good family background, this world is nothing more than a world where Princes are more attracted to Cinderellas.

Her first love that she dearly remembers in her heart for years eventually becomes Guan Ying’s current boyfriend and her fiancé is Guan Ying’s ex. He has yet to forget Guan Ying.

A business marriage brings Changqing and Song Chuyi together despite the absence of love.
In public, he is her friend’s ex and in private he is her husband who cannot be publicly–known.
At the hospital, her good friend enjoys her husband’s embrace while she can only act as though he’s a stranger.
At a gala dinner, her good friend hooks her arm around her first love’s arm shyly and she can only smile and give them her blessings.

…

In this marriage, Changqing thinks that all is well other than the fact that Song Chuyi doesn’t love her.
First, her husband is a doctor and he can treat all her illnesses while saving up on medical expenses.
Second, doctors love cleanliness and her husband would always ensure the cleanliness of the house.
Third, at the end of every month, her thin wallet would grow thick with cash that her husband stuffs in secretly.
Fourth, as a person who doesn’t like to exercise, she always get dragged around by her husband day and night to do some pleasurable exercise that is beneficial for the body and mind.
Fifth, she would never have to worry that she would be out of money.
There are always so many uncountable advantages that Changqing enjoys.

…

After the marriage, on a certain night, Changqing looks at Dr. Song gloomily. “Hubby, why are you so nice to me when you don’t even love me?”
Dr. Song continues reading his medical books and ignores her. It’s sometimes quite a headache when your wife is too stupid and daft.
Until one day, Changqing realises that there’s really no free lunch in this world…

- Description from Novelupdates

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates

Du Xiao Li, the legendary person all look up to, yet couldn’t ward off the ridiculousness of fate!

On the first day of their divorce, he said, “She'll be back before midnight.”The second day, “She'll be back in three days. It's just one of her stunt to make me mad”.The third day, “She cannot do without me so she'll be back in seven days.”On the seventh day, “She'll definitely come back within two weeks.”After a whole month... “Boss she's really doing it, she's kissed a stranger at the gala.”“Catch her and bring her home.”In her past life she was the good and enduring wife, in this life she became his little devious sin. A pain in the ass and his little ass kicker.“No one dared treat Mr Hamilton the way she did, do you think he would forgive her?”Harlow Blackwood was accused and wrongfully killed in her past life by her family and husbands family. But fate had other plans for her.When she returned, Harlow swore to take revenge on the people who killed her children and ended her life. But there was something else in this life. The husband who joined her enemies to attack her in her previous life turned out to dot on her more than ever before.In her past life Harlow was a mighty cook and would prepare food for the entire family, she turned into their slave to please them, yet no one liked her.But in this life...“I am useless hubby, I can't cook, clean, have kids or take care of you...Her hubby smiled. “None of those matters. I can cook, clean, take good care of you, and most importantly, give you children. How many are you willing to have?”In her current life, her husband has a huge secret too, what could that be?