MTL - I, a Demon Slayer Girl, is Invincible! - Chapter 300

From the age of 7, Qiao Qiao realised that her family wasn’t quite the same as her friends’ families.

Her father, dressed in all white, said, “Our girl should learn to cultivate immortality with me!”

Her mother, dressed in battle armor, said, “Our girl should train her body to protect herself!”

When discussing it, they decided to solve it with a duel outside.

Her brother secretly asked, “Qiao Qiao, do you want to be in the entertainment industry with me?”

Then, her brother was kicked out of the house by her parents. She prayed that he was okay out there. 

Qiao Qiao sighed. She was really worried about this family.

She silently collected mech building materials. There was no other way, if she learned how to use mechs, she would be able to get a good job. Unfortunately, her unreliable parents didn’t understand.

It seems like the burden of supporting this family was handed over to her.

- Description from Novelupdates

“I WILL MAKE THEM ALL REGRET THE DAY THEY MET ME! I WILL MAKE THEM WISH THEY WERE NEVER BORN! AND I WILL MAKE THEM HATE THE DAY THEY THOUGHT OF BETRAYING ME!”“You will, Sweetie. And I'll help you with that...”Those were the last words Avery spoke and heard before passing out in her bloody red wedding gown, on the same day she was supposed to marry her boyfriend from senior high school.~~Avery McCallum, the sole heiress and president of the McCallum Group of Companies, had her whole family wiped out on her wedding day. Framed for her grandfather's murder and stripped of her position, Avery vows to take revenge on those who wronged her. But her powerless state seems to mock her determination.Enter Archibald Donovan. She used to hate the devilishly hot and narcissistic chairman of the A² Corp who also happened to be her older brother's best friend, but when consumed with the need to take revenge, she begged him to marry her in return for fulfilling a long list of conditions. Archie agrees, and a month later, Avery re-emerges as Ava Donovan, a rising actress and the wife of the most powerful man in the country.With her newfound status, Avery systematically destroys her adversaries, uncovering dark secrets and hidden agendas along the way. But as she navigates the treacherous landscape of her new life, she must confront the truth about her family's past and at the end of it all, come back to him.She owed him after all...EXCERPTArchie's eyes darkened when he saw her stumbling out of the wine cellar, a bottle of wine in one hand and her night robe, in the other. She was literally half naked.“Hey...” her greeting came out in a slur, and that was all he needed to know she was drunk. Very drunk, at that.“Why?” he asked simply, knowing she would interpret his question as she usually did.“I...I visited them today. The flowers on their stones were already wilted and...and...it broke me. I wanted to be happy and at the same time, I wanted to cry,” Avery replied, inhaling short wisps of air before she continued, “Then I found the cellar.”“Did it work?”She shook her head slowly in reply, lifting her head up in time to see a mischievous smirk curl on his lips.“Don't be sad, Baby girl. I happen to know a way to make you cry and keep you excited at the same time,” he said.“Really?”“Wanna try it, Mama?”Avery nodded, slowly but firmly as he closed the distance between them.As he promised, she did cry...in pleasure.

The scum’s or villain’s long road of transformation was tentatively set to the world:
The abandonment of the educated youth’s wife (Completed)
The hidden marriage of the scum film emperor (Completed)
The best brother in the world (Completed)
The Phoenix male who destroy the bridge after crossing the river (Completed)
The treasonous general (Completed)
I’m an honest man (Completed)
To become the top scorer in the School of Agriculture (Completed)
The soft rice man’s self-cultivation (Completed)
The whole world is reborn (Completed)
I want to survive on a desert island (Completed)
The stallion male who has seized the opportunity (Completed)
The perverted self-salvation (Completed)
The spring of the loafer (Completed)
The misplaced life (Completed)
The miser career (Completed)
The ghost is out of feeling (Completed)
The Queen’s favorite husband (Completed)
The vicious girl with her godfather (Completed)
I want to be a good person (Completed)
I does not tear up the family (Completed)
The perverted common plant (Completed)
The Mary Sue’s men (Completed)
Every time I was reborn, someone wants to kill me (Completed)
The old people’s counterattack path (Completed)
The global evolution (Completed)
When I became a net red (Completed)
For you, good person (Completed)
His heart had white moonlight (Completed)

- 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