Tate no Yuusha no Nariagari - Chapter 344 - Soul Eater

After her life ended, Nan Fei Yu was bonded to a Villain System. In order to complete the system’s tasks as soon as possible and reshape her body, she became a villain that everyone hated. Everyone wanted her to die! However, if the villain was delicate and soft, did it bring an alluring hallo?

- Description from Novelupdates

Transmigrating into a world of cultivation, you find yourself at the lowest rung of the sect's hierarchy. Everyone wants to bully you to gain some benefits. Fortunately, there are always a few junior brothers and sisters who are 'generous and understanding', allowing you to improve peacefully and secretly grow stronger. Years later, unbeknownst to anyone, you successfully become a deity within the sect. This day, your master visits you at the sect's request.'The upper echelons of the sect believe you have been diligent and loyal over the years, and though your strength is mediocre, you are an honest person, so they've found a marriage alliance for you.''An alliance marriage?''Not exactly. The other family has a rule: marrying into their family means taking their surname.'Is this... becoming a son-in-law who marries into the wife's family?

Fourteen years old Su Bei almost died when she had a high fever, got transmigrated into another world and finally knew a shocking truth–it turned out that the world she was originally in was just a novel and her whole family were villains.

The woman who gave birth to them was the cannon fodder in the novel. She and Su Xiaobao were written like this in the extra chapter. One was a little bastard who tried to bully the male lead’s daughter and eventually got thrown into prison and the other one became an escort, who after having failed to seduce the male lead, was killed by an evil director. They also have a dad whom they never met and was the biggest villain in the book.

Back to her original world, the first thing Su Bei did was to take Su Xiaobao and find their father.

Su Bei: Su Xiaobao, quick, call him.

Su Xiaobao: Call him what?

Su Bei: Call dad.

Su Xiaobao: I don’t want to, do it yourself.

Su Bei: Dad!

Looking at these two dirty children in front of him, Mr. Qin’s eyes showed disgust.

“I'm going out to do something, so I can't take care of you any more. You can go down the mountain and have fun. But if you can't find someone who matches your Innate Pure Yang Body in three years, you're finished!”These were the last words the old man, who was Lionel Yeager's teacher, threw to him before he vanished. Meanwhile, having mastered most of his master's skills, Lionel Yeager went down the mountain and took his first step into civilization for the first time in years.With his unparalleled medical and martial arts, he sets forth on a journey, befriending new allies and crushing all the enemies that stand in his way, as he attempts to resolve his Pure Innate Yang Body constitution, and cultivate to the top of the world!