Seven Deadly Sins System - Chapter 8: Cai Yu (R1+)

An advertising director is reborn in 1988 Hollywood as an eighteen-year-old blond-haired westerner named Eric Williams.

The unparalleled Demon King Ye Xuan, who was able to heal the death or the living alike and holder of the medicine Holy Scripture, was betrayed and killed by his fellow Demon Kings. But he reincarnated into the body of Ye Xuan, the prodigal son of the Ye family and vowed to himself that he would return to his peak and take back everything that belonged to him!

- Description from Novelupdates

Lynn traveled to a magical world similar to the European Middle Ages but possessing magical powers.

Here, magic can affect and control elementary particles.

So…a scientific theory is a magic formula!

Wizards called spellcasters who are actually scientists, under the siege of the Holy See, struggled to explore the truth of the world, until the arrival of Lin En, which set off a renaissance of an alien version…

(PS: The 2 million-word work “Hogwarts Bloodline Wizards” has already been completed, and the quality is guaranteed!)

- Description from novelbuddy

Li Yi once lived the dream of every pro gamer. He was at the top of his game with the best equipment, the highest stats, and everything a gamer could ever hope for. However, he soon realized that none of his ill-gotten gains for his to keep when he was branded Public Enemy Number One and killed in the biggest battle of the ages.Now, he has the chance to turn back the clock and return to a time before his first mistake put him on the path of no return. This time, Li Yi will make different choices. With that, comes many interesting encounters — like saving a woman in distress then making love to her seven times in a row while her child slept in the next room. However, will he get back to what truly matters?One thing is for sure, with the memories retained from his past, he will become King of this game.