DxD: Building A Demon Clan From Scratch. - Chapter 245: The Ruins

After his mother dies from a serious illness, Mo Jingchun is left to shoulder the burden of raising his six-month-old sister on his own. Fortunately, he’s an exceptional student and he awakens the Science System. “Congratulations, dear host, for winning the AI Assistant's first-generation Jarvis source code.”

We have all heard the legends of great wizards, but do we know how those stories begin? Ardan Egobar, a young man living in a remote corner of the New Monarchy Empire, does not. He doesn't realize that this story is about him. Not yet...In a world where steam locomotives chug along iron rails, where massive airships hover in the skies, where in the cities you might encounter orcs in suits involved in organized crimes, dwarves with cigars controlling major banks, or elves strutting down fashionable boulevards, where humans have built vast nations on the brink of a world war, almost anything seems possible.Maybe, in such a world, even an ordinary young man, the last of the mountain hunters, might one day become the greatest wizard in history.

Mysterious occurrences loom; the entire world dramatically changes.The fate of individuals and nations becomes bound to AnalogHorror (rule kaidan), and once the chosen of destiny fail, it means countless people in their corresponding nation will be slaughtered by the strange phenomena.The entire world falls into unrest, panic, and despair.Until an absolutely unexpected individual joins the AnalogHorror game.Xiao Yiwang glanced at the weird world before him and then at the examination admission ticket in his hand.“Have middle school entrance exams always been this complicated? Well, it does prove my intelligence!”“I am retarded, but selected to join the analoghorror game?!”

After being reborn twice, Jiang Chen discovered that the tragic death of the first life was not an accident, but a meticulous design for the sake of never ending troubles.

The protagonist of “Life of Domination” wears the “best choice system”. In the delivery room, the system gives him two choices: “ordinary biological parents” and “rich non-biological parents”.
The protagonist chooses without hesitation.

So , the system took Jiang Chen and the protagonist unknowingly, and the life after that was turned upside down.

The protagonist relying on the system in his hand, went all the way from a scholar to a crocodile, inheriting the family business in expectation, a complete life winner
Jiang Chen, on the other hand, had to give up his original dream and graduate early to earn.

One hundred years after the star calendar, the scientific research boss Jiang Chen woke up and returned to his second year of high school. His father was disabled in a car accident, and his mother carried all the heavy burdens, but did not complain to him at all.

Jiang Chen did not choose to find his biological parents first, but made a breakthrough by himself with the memories of his previous life and the knowledge he had learned in his previous life.

In a word: Professor Jiang, a man who can tear apart the system plug-in with his bare hands.

- Description from Novelupdates