Fangless: The Alpha's Vampire Mate - Chapter 285: A Match Made in Villainy

Eren Idril died as an old, decrepit, and piss-poor adventurer by the maws of a D-Rank monster. He had a lot of unfulfilled dreams and desires that couldn't see the light of the day after the light in his own eyes died down.

But fortunately for him and unfortunately for the world, that wasn't his end. Eren was somehow dived back in time when he was a mere teen, attending Lionheart Academy for adventurers.

When life gives him a second chance, Eren decides to exploit it to its fullest. Experience his vile deeds as he partakes in them without feeling the slightest bit of hesitation.

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

Traveling through the Xianxia world, Chen Chen got the strongest tracking system and was able to track everything ever since.

The era of Universal Lordship has come to this world, bringing many opportunities and challenges for humans.At the age of eighteen, each person can acquire territory and participate in the Lord's continent, which will determine whether they can move into a vast world or die in mediocrity.Thousands of years after the start of this era Neo looked up at the sky waiting for his opportunity, the opportunity to change his life and move toward a grander goal.All lords choose an easy route and select a race that already exists but he wished to go against the current, so even if it was looked down upon he created his own race bravely and swore to fight tooth and nail for success.This is the story of his journey as he walks step by step toward a grander future.