[Genius trope] + [No system] + [Single female lead] + [Decisive and ruthless]

Zhao Yu transmigrates into the body of the young master of the most villainous family in the book, and at the beginning of the story, he witnesses his family collaborating with the demon race to conduct demon experiments.

Fortunately, Zhao Yu grasped the plot of the book, resolved the family's hidden dangers in advance, seized the opportunity of the protagonist's destiny, and from then on shocked everyone, ascended to the top, and swept away all enemies in the world.

"What is a righteous person, and what is a villain?"

"Only the victors have the right to speak of justice!"

(Please add this to your bookshelf, handsome guys and beautiful girls! Wishing you all great wealth! ₊⁺♡₊⁺)