Isekai Maou to Shoukan Shoujo no Dorei Majutsu - Volume 11 Chapter 1 part2

Humans are clever in tens of thousands of ways, Gu are the true refined essences of Heaven and Earth.

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).

Li Yi accidentally obtained a black science and technology library, which contains countless books of the inheritance of high-tech civilization and records countless knowledge.

There are thousands of bells in the book, there is a golden house in the book, there are many horses in the book, and there are Yan Ruyu in the book.

Li Yi has completely turned into a bookworm, learning all kinds of knowledge from the library, grand unified theory, particle Tebo theory, …, acquiring various black technologies, superconducting materials, super batteries, intelligent algorithms, … .

- Description from novelbuddy

What is the most painful thing in life? What is the happiest thing in life?

The most painful thing was that after untold hardships, for that small glory at the end but was returned back to the starting point in just one night.

The happiest thing was that after returning back to the starting point, without doing anything, was able to become overpowered overnight.

Zhou Jian in just one day, experienced his life most painful and happiest thing.

The most painful thing was his painstakingly raised professional Thief game account in the online world was “lost” by the system.

The happiest thing was the reason behind his game account loss. The Thief from his game account had appeared in the real world. And become a controllable God of Thieves.

In short, this is a relaxing YY (tl: Chinese slang for light perversion) story, full of plots where playing the pig to eat the tiger. The protagonist is a very righteous young man. Occasionally, he will be wicked but also because he was forced by the author….

- Description from Novelupdates