Extra's Harem: Invincibility Starts with Marriage and lots of Children - Chapter 154 - Laugh while you kill

The World of Immortals, it is the world every mortal long for. For many, it is an eternal glory to cause a spatial distortion and enter the World of Immortals. But the vicissitude of time is simply merciless, the legends regarding immortality had long been forgotten.

Luciel Ashford was a powerful vampire hunter who fought for humanity's survival in a dystopian world that was being overrun by supernatural creatures.After being sent on a simple mission to eradicate a vampire nest that appeared near one of the human colonies, no one expected one of the most powerful beings to appear - the vampire king, Alukah.In a big showdown that was thought to be the start of a new era, Luciel faced off against Alukah. He won the battle but at a price. That night marked the fall of humanity's hero.Turned into a vampire, discriminated and hunted by the humans he fought for, he is going to answer their call for help once more to protect the people he cares about.Torn between the two worlds, he is going to climb back to the top, forging his own path while still trying to keep his morals intact.“Well, I have a message for you, god. Screw you!!!”_______________!!!WARNING!!!For those who came for the system, you can expect it to see after ch80. Reason being is that the focus is more on cultivation.The system is just a tool for better understanding of the story that's about to come!

“As a firearms modifier, it’s normal for me to have better marksmanship, right? John Wick?” —— “The John Wick Series”

“As a private detective, it’s weird to solve the case faster than you, and better than you can fight? Zhou Xingxing?” – “Play Back To School”

“As a psychiatrist, shouldn’t the patients in Arkham Asylum listen to me? Bruce?” – “Batman”

“As an archaeological expert, a little knowledge of Feng Shui and tomb chambers, isn’t this a basic professional quality? Wu Tianzhen?” – “Tomb Raider Series”

“As an animal breeder, is it too much to keep some Godzilla and King Kong?” – “Monster Series”

 …

One world, one profession, let ordinary professions glow with new brilliance in the heavens.

- Description from novelbuddy

Su Yun was a prodigy, blessed by the gods. However, life is never so easy. Soon after reaching 6th stage in spirit novice realm cultivation, his progress stagnated due to incurring a rare medical condition.

A few years go by, and Su Yun has spent all his time gambling or drinking, wasting his youth away, but one day everything changes. Qing Er, the only one who stood by him was forced by his clan to be a sacrificial bride to someone she didn’t love, only to be executed by the groom on the wedding night for fleeing. Burning for revenge, he scoured the world for a cure for his rare medical condition from both righteous and villainous side.

Countless years go by, and finally Su Yun not only found a way to cure his rare condition but also gain immense knowledge on a myriad of martial techniques.

But before he could fully cure himself, he received news that the groom suffered an assault that damaged his internal organs. Rather than wait for decades to become fully cured, Su Yun decided to hatch a plan for the assassinate of the groom. Unfortunately, he underestimated the strength of the groom’s family and was killed instead.

Then he regains consciousness. He comes to a realization that he went 15 years in the past. This time, he vowed to protect Qing Er, but first he must cure his rare medical condition. Will he learn from the mistakes of his previous life or is everything still set in stone?

- Description from Novelupdates