I opened a shop on the Astral Train - Chapter 17

In the City of Crime, one law stands above them all: Only the strongest can live.

“I suddenly discovered that this world is dangerous today.” Bai Zhi looked grave as he typed out a line of text on his computer.

“When I went out today, I came across some poor guy getting bitten by another person. Luckily, a few brave guys rushed out to bring the criminal to justice, but when the person who was bitten struggled to stand up, he was immediately beaten to the ground by one of those who had supposedly saved him—and then, they called the police! I’ve watched more than enough modern movies to know what happened. The zombie was taken out before the virus could spread.”

“Last time, you told us about a few guys saving humanity from an alien invasion… This time, it’s a zombie outbreak?”

There was an exasperated response from the chat box.

“So how was that dangerous?”

“There are also several girls who are fighting tooth and nail for a piece of me! It’s totally Hell in here, don’t you think it’s dangerous!?”

“???”

Traversing into another world, Zhang Xuan finds himself becoming an honorable teacher.

Along with his transcension, a mysterious library appears in his mind.

As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weaknesses will be automatically compiled in the library.

Thus, he becomes formidable.

“Emperor Zhuoyang, why do you detest wearing your underwear so much? As an emperor, can’t you pay a little more attention to your image?”

“Fairy Linglong, you can always look for me if you find yourself unable to sleep at night. I am skilled in lullabies!”

“And you, Demon Lord Qiankun! Can you cut down on the garlic? Are you trying to kill me with that stench?”

This is an incredible story about teachers and students, grooming and guiding the greatest experts in the world!

- Description from Novelupdates

[Youngster don't understand the charm of 'milfs', instead mistaking Lolitas as the treaures]Leading a life filled with regret and pain, Li Zhiyan reborn with a seemingly feeble 'system', taking back to 2010.Right at the moment he was about to be publicly rejected at graduation party after confessing his feelings with a bouquet of flowers to the school beauty, Yu Sisi, and about to become a joke among his peers for years.“I...I am reborn?”The wheels of a new fate begin to turn.All along, the school beauty Yu Sisi has only been deceiving and playing with him. In his past life, Li Zhiyan himself did not know and became a laughingstock, but now, as a reborn person, he has already seen the true face of this girl.He chuckled coldly, glanced at the mother of Yu Sisi on the side, the 41-year-old Aunt Gu Wanzhou.She was mature, intellectual, elegant, kind, considerate, low-profile.The sex appeal of a mature milf lady was radiating all around.Li Zhiyan decisively picked up the flowers, ignored the school beauty, and boldly confessed his feelings to this attractive mature woman in front of everyone.“Lady Gu, actually, I've had feelings for you for quite a while.”