MTL - I Am The Only One Who Doesn’t Know I Am The Master - ~ come in and say something

Shennugou is an old and infertile place. It’s hard to find a woman to marry here.

"So, that's how my life ends, what a waste of time it was...".
These were the last thoughts of a young man, shot by accident in a fight between local gangs. Little did he know that he would soon wake up in another world, a world of cultivation!
This is the story of the whoreson of a wealthy family, of a transmigrator that had no purpose in his previous life, of a demon that will make power his reason to keep on living.
Noah Balvan, after he transmigrated, will have to fight against his social status and the many difficulties of the world he was reborn in to obtain the power to stand free in the sky above anyone!

Leon is an average high school student who likes to watch anime and read novels.
He's about to cross the street, only to be greeted by a truck and died.
But, he got reincarnated as Uchiha yet dead again because Itachi killed him.
Leon got reincarnated again as the grandson of the recovery girl.
He got kidnaped and tortured by All For One.
After his third death, he got reincarnated as a son of Bibi Dong.
In this fourth life, he wants to change his fate to become the strongest.

Note: Please read the tag before reading.
- English is not my first language, so there would be grammatical mistakes in this story.
- Please give my story a proper review.
- I accept a suggestion, but no spam!

A prestigious senior mechanical engineer in the industry, Xu Yi was sent to a world dominated by magic.

In a world with an almost non-existent industrial system, how can Xu Yi display his value?

When magic collides with modern technology, when magic merges with machinery, that is the beginning of this story.