MTL - My Hi-tech Library - Chapter 1 mysterious black tattoo

Once upon a time in a modern city, a man died and was reincarnated into a body and a new mythical world.

This world holding many secrets, and wonderous things, but he possessed something that was highly regarded in terms of importance and usability: SPEED.

Join Noah on his quest to acquire great power, meet new people; while also discovering the many mysterious features of this new world he'll eventually learn to call his home.

Zhang Jun joined Shu Guang High School to find that their soccer team are bottom-feeders! What could he do? Who is his beautiful new neighbor? And who is Li Yongle, and why would he declare himself as Zhang Jun’s rival? Youth, romance, and rivalry, all waiting for you in “Would You Mind if I Play?”

A chance to change, to challenge destiny, making dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish!

All the people came to the Chaos Continent, became the lord of one party, and participated in the struggle for hegemony among all ethnic groups.

Tinder is the authority of the human lord. You can sign in on Tinder every day to get population, blueprints, food and other materials.

Huang Yu signed in on the first day and got a discounted artifact.

A batch of discounted products will be refreshed every day for Huang Yu to buy.

then……

“This legendary weapon is only 10,000 magic crystals after the discount? I bought it!”

“0.5% off dragon eggs? Give me 100!”

“0.0…01% off the extraordinary arms training camp! There is such a good thing? Come to the bowl!”

…

Since then, Huang Yu and his territory have become famous in the Chaos Continent!

- Description from novelbuddy