MTL - Crossing to the Future, it’s Not Easy to Be a Man - Chapter 9 : Gene stimulating agents!

A supreme expert in the Immortal World had died, and a strand of his soul returned to its original body on Earth. Tang Xiu discovered with amazement that ten thousand years passed in the Immortal World, yet only a single year passed on Earth.

Ruthlessly betrayed by his lover and trusted friends, Tang Xiu found that his soul went back to his previous body on Earth, and, despite he spent 10,000 years in the Immortal World, just a year has passed on Earth and many things have changed. Having an unsurpassed knowledge, Tang Xiu will protect his loved ones and go back to the Immortal World to take his revenge.

- Description from Novelupdates

As soon as Luo Yan graduated, he immediately got an offer from a prestigious gaming company. He thought all his hard work finally paid off. And he would finally reach the pinnacle of life. But then, on his first day of work, a potted plant fell on his head and he died.Surprisingly, when he thought he would cross the Yellow River, he suddenly woke up and found himself in the body of a 17 year old boy. This body had the same name as him but completely different background. Because the original was the second young master of the Luo family - one of the most powerful family in S City.Luo Yan almost cried. God probably took pity on him and decided to give him a loving family with a wealthy background. He didn't have to work hard anymore. Studying like his life depended on it and pretending to be a holy father just to cater to people.So Luo Yan decided to be a salted fish and just shamelessly sell meng.A certain male god who always bought Luo Yan's meng: Yan Yan is so cute! Why is Yan Yan so cute??Cold faced on the outside, a cinammon roll on the inside Gong X Super beautiful, black-belly Shou.Cover art by Revereine

This is a world where science and magic coexist.

Some people here seek powerful magic, and some seek eternal truth.

A science tyrant who came from another world, started as a little librarian, with magic in his left hand and truth in his right, kicking the door of the new century with one kick.

Some people call him the forerunner of magic, some say he is the founder of science.

Some people describe him that way.

In the new century, Blair is a symbol of evil.

- Description from novelbuddy

Lin Jie, a transmigrator, is the owner of a bookstore in another world.