MTL - Urban Demon Slayer - Chapter 122 no luck

In a future timeline, the earth was visited by a species known as the Slarkovs.
Having lost their home planet and in search of a new one, earth was the next habitable planet for them.

Humans and Slarkovs made a deal with each other in return for the Slarkovs living on earth.
The Slarkovs traded their technology and knowledge for a new home.
They were similar to humans except for some of them who had slight differences so fitting into the society wasn't a problem.
Over the years Slarkovs and humans began to mate with one another and reproduce offsprings.
This in turn created a new species known as the mixed-blood.
Centuries later mixedbloods could tap into their bloodline and perform unimaginable feats.

Gustav born into an age where bloodline determines everything, struggles to fit with a useless bloodline.
His bloodline only grants him the ability to change his hair color, destroying his hopes and dreams for a great future.
His fate is turned around when an unexpected situation leads to him finding a system that grants him the power to unlock and upgrade bloodlines by completing quests but he's baffled by two quests with a five-year deadline. Success will grant him unimaginable rewards...
But only one thing awaits him if he fails... Death!

Follow Gustav on his interesting journey filled with unprecedented adventures, danger and death, maybe?

Ye Qiu transmigrated to a world of barren wastelands. He obtained the 10,000 Fold Return System.

For better or for worse, till death do us part. That was their vows at the altar, but he broke them first..He claims an open marriage is the solution to their childless marriage and that it's to protect her own interests. But all Braelyn sees is a prison built from guilt and lies.One heartbroken night, she stumbles into a karaoke bar and into the arms of Lucien. A man shrouded in mystery, rebellion and danger. His very presence tells her to run but it also gives her the solace she craved.She never expected to see him again after she ran, forgetting his sinful existence, but life wasn't done making a joke out of her.Lucien isn't just any man, but one who can destroy everything she believes in. The man she was never meant to meet. Her husband's uncleThe black sheep of the Volkov dynasty. A man whose desire will ruin her. Lucien knows she can't be his, but he was never a man who respected social norms. He doesn't care about anything but her every sin and touch.All he wants… is her, no matter how sinful it gets.

This is a story of the flesh pushing everything.

In the Great Ye Dynasty, darkness descends, full of evil spirits and ghosts, killing invisible.

In the face of demons and evils, ordinary people can only shiver, curl up in the corner, and wait for their lives to come to an end.

Jiang Dao came through, carrying a martial arts modification system, and any martial arts can be modified infinitely as long as he glances at it.

The mad magic stick method, the eagle claw iron cloth shirt, the poisonous sand palm, the violent ape magic… are all revised to the realm of a thousand years later.

Facing the evil spirits, Jiang Dao had a burly body, muscles all over his body, and his eyes were like electricity.

“Evil spirits? Who said martial arts can’t kill evil spirits?”

- Description from novelbuddy