MTL - I, a Demon Slayer Girl, is Invincible! - Chapter 15

After a shocking reincarnation, our hero opens her eyes to a new (and messy) world the last thing she remembers is reading Lady Viper’s Vow, a dark fantasy novel about a cruel, misunderstood villainess and her path of doom. But when our protagonist finds herself reborn right in the heart of an attack, she’s moments away from a second, way-too-soon death. Just as she’s about to face the end, a mysterious “system” pops up with a single mission: Level Up or Die Trying. It’s bossy, snarky, and her new best friend. As she levels up into a borderline-cheater powerhouse, she discovers her fate isn’t to be a hero, a princess, or even a sorceress, but to protect the one person no one ever expected her to side with: the villainess herself.

This novel is about the young master of the Du clan, Du Shaofu, who was born with crippled veins and is unable to cultivate martial arts . After finding out about his situation from the clan while returning home he got hit by a lightning and a mysterious ‘first scripture’ appears and after studying for ten years he was able to mend his crippled veins together and starts his journey to glory.

- Description from Novelupdates

The full-level boss Lu Jingzhi crossed over.

Start with a thatched cottage, with three family members attached.

Lu Jingzhi gnawed on the bun and clenched her fists—rise up, she wants to rise up!

After all, he is the owner of the three-line ability, sitting on the space, with a lot of food, so is it possible that he will starve to death in the valley?

It’s just—something is wrong with my mother, what, she was reborn, and she was an imperial concubine in her previous life?

There is something wrong with my sister, what, is she a female president from modern times?

There is something wrong with my sister, what, she also wore it…

Lu Jingzhi was ecstatic… the whole family worked together, is it still far from the days of eating hot pot and living in a villa?

Hunting, farming, making jam, growing peppers, opening a milk tea shop… Life is getting more and more prosperous.

- Description from novelbuddy

This is a story that follows the courtship between a stone from Hell and a god from Heaven that begins in the underworld and spans for three lifetimes in the mortal realm.