MTL - The Legendary Mechanic in Marvel Universe - Chapter 25 ready to leave

Freely traverse between the city and the abyss, cultivate a demon legion! Command demonic talents!My name is Bai Yan, from that day on... one of my souls possesses two identities.I am a demon! Also a human!When I am good, I benefit the world! When I am evil, there are corpses everywhere!

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!

[Mature Content]Arabella Donovan sacrificed her youth solely for her husband. However, he divorced her because she could not bear children for him, causing her great pain.Bella decided to disappear from his life.Five years later, she returned to the country with her adorable son.Her peaceful life started to get disturbed when her ex-husband chased her back the moment he found out she was giving birth to his son.But now, she wasn't the same Bella she used to be. She is an entirely different person.*****“Boss, she's back!”“Who?” Tristan Sinclair asked while scribbling his signature across stacks of papers.“Your wife—” The assistant hesitated, watching Tristan closely. When he saw Tristan's furrowed brows, he corrected himself. “Sorry, I mean your ex-wife, Ms. Donovan. She's returned with a boy...”Tristan sighed, eyeing the contract before him. After five years of searching, only to find out she's moved on, it feels hurt. But he couldn't avoid it. She deserves happiness with someone else. He'll take this loss. “She deserves a new husband...” Tristan muttered, dismissing his assistant.“Boss, what I meant was the cute little boy. I think he's around four years old—”Tristan snapped. His head up, fixing his sharp gaze on his assistant.“I need you to arrange a DNA test for the kid. And get me her address!”A glimmer appeared in his eyes as a smile slowly spread across his face.

In previous life, she was ignorant and naive. She was a “villain” owning a horrible reputation ever since childhood. She was framed by her friend, betrayed by her beloved, and ended up alone and died miserably. When she was reborn in the 1980s, she vowed to recognize the true nature of the people around her and work diligently. In this life, she would never let her younger sister die for her again. She will be an excellent female soldier, a pious daughter, and a qualified elder sister.Let's watch how she goes all in, saving her sister from great distress. She will turn the tide and lead her family through the reform and opening-up, striving for prosperity and a better life.