MTL - Lost In Azeroth - Chapter 1130 before the war

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

In a modern world where cultivators need a place to cultivate or vent their boredom, there are private businesses that set up instance dungeons with the aid of technology and cultivation magic to enable cultivators to train and commoners to experience the life of cultivation. They are called dungeon suppliers.
Xie Jin's one and only dream was to be a dungeon supplier and when his only relative passed away, the relative's inheritance gave him a plot of land and surprisingly, a 'System' Module which the relative had previously used.
With the help of the system, Xie Jin decided to pursue his dream of becoming the number one dungeon supplier.

Three thousand years ago, Bai Qiuran, who was extremely talented, was accepted as a disciple by the founder of Qingming Sect, and the young Taoist began to cultivate the path of immortality.

Victor was a normal 21-year-old man, he grew up in a loving family that helped him take care of himself knowing that he had a practically incurable disease, the RH null blood, he was the owner of a rare blood type…

But what Victor didn’t know, is that this blood type was a delicacy in the supernatural world, creatures that fed on blood loved his blood type…

And that blood he hated would be the factor that would make Victor the greatest vampire of all time.