Monster Musume Harem wo Tsukurou! - Chapter 53: With Rin

A hundred thousand years ago, there was a great war between cultivators. Immortals fell by the tens of thousands, the path of cultivation itself was severed, and after the dust settled, tombs forested the world.

A hundred thousand years after the last legend faded, Lu Yun, commandant of tomb raiders, descends upon the world. Armed with the Book of Life and Death, he has some burning questions to answer.

……

“This isn’t how you raid a tomb!” Lu Yun smirked at the cultivators frantically scurrying about the ancient tomb. “Do you want me to teach you?”

……

But ah, can someone teach him how to cure his new body’s erectile dysfunction?

what did you say?
Your mobile phone eight-core processor? 6G running memory? 256G storage? One and a half hours full of electricity?
Very great?
Our mobile phone 16-core processor, 12G running memory, 1T storage, can be fully charged in just 10 minutes!
what did you say?
Your charging treasure 30,000 mAh capacity? Two-way fast charge?
Sorry, our charging treasure has a capacity of 100,000 mAh. As for the two-way fast charging technology… Our 10,000 mAh mobile phone can be fully charged in just ten minutes. Can you tell me two-way fast charging technology?
what did you say? Our products are defective?
Come here! Come over and try, let you see how to kill you in minutes!
Super electronics, super cars, super buildings…
Since Lin Yun acquired the universe trading system, various industries began to get a strong impact…
Money is just a trail, and force is fundamental!
You said that Lin Yun’s goal is to dominate the earth?
Do not! Do not! Do not! You are wrong, his goal is the sea of stars

- Description from uukanshu (translated)

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