I've Become a Genius Actor - Chapter 36:

She is a top-class spy, a poison specialist, but also a young and cute girl with a sinister temperament. In spite of her sweet and innocent appearance, she can complete any tasks without the slightest hesitation. One day because of an incomplete black magic, she was sent into the body of a girl who was deemed as a good-for-nothing. What kind of change will she bring to this continent?

My mother is the sweet, silly, and innocent protagonist of an angsty novel.

My mother was the substitute for the overbearing CEO’s unrequited love interest who ran off when she found out she was pregnant.

As for me, I’m nothing special. I’m just the child prodigy who became a hacker at the age of five.

…

Genius hacker Gu Chu found herself reborn in the pages of a tear-jerker book.

She had been transformed into a cute little five year-old. Her mother was the tragic female protagonist while her father was the uncultured, boorish male protagonist. There were also a gaggle of hostile, opportunistic relatives and a pretentious, seemingly-virtuous but vile-hearted aunt...

Gu Chu straightened her small little frame and began waging war secretly to help her mother.

What bad intentions could a five-year-old have?

She just wanted to protect Mama.

…

Until one day...

The man who had hunted her across half the globe in her previous life suddenly appeared.

As he stared at the weeping little doll-like child in her princess dress, the man fell silent for a long while.

When you were six years old, after watching a martial arts movie, you put your hands into the rice pile and imagined that you were practicing iron sand palm.

When you were seven years old, you were the first to greet a stranger in the new semester, and you felt that you were the diplomatic spokesperson for your class.

When you were eight, you could tell it was your parents coming home just by hearing footsteps, so you thought you had a good ear…

……

What will happen when the fantasy of secondary school when you were young becomes reality?

Ji Ruo stretched his hands into the rice pile—

[Congratulations to the host child for unlocking the achievement of Martial Dao: Iron Palm Mi Nei Shen! 】

[Acquired Martial Skill: Iron Sand Palm (first glimpse of the door)]

[The skill level can be repeatedly obtained by activating the proficiency. Heaven rewards diligence, host children, come on~]

Ji Ruo’s mouth twitched, he felt that his achievement system was not normal.

After thinking about it, Ji Ruo picked up a small wooden stick and walked to the rice field not far away…

……

- Description from novelbuddy

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates