MTL - What Should I Do If I Attack the Protagonist Through a Book? - Chapter 34

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?

The mysterious boy Ling Chen is saved by a little girl as he lay on the street dying. Years later, he strikes a deal to save this savior-turned sister and enters the virtual world. In a future Earth where advanced warfare has forced nations to settle issues virtually or else suffer the consequences, Ling Chen bursts into the scene and goes from unknown to legend. Yet all is not as it seems, for Ling Chen has a dark past, and there is a greater mystery at hand behind this virtual world.

To save his terminally ill little sister, Ling Chen enters the newly released virtual game world and joins a small gaming studio comprising entirely of women. From now on walking upon his path towards the pinnacle. An ancient, evil item almost forgotten by history, the “Lunar Scourge” helps forge his unsurpassable legend, and causes him to unknowingly step upon a path that is destined to be punished by the heavens, the way of the Shura.

- Description from Novelupdates

Crossing the Douluo Continent, or an auxiliary spirit master?

Su Xun decided to exercise his body first.

Thirteen years later, Su Xun is out!

Star Dou Great Forest…

“Golden Eagle, the white feathered peregrine falcon killed your wife, I’m here to help you get revenge, you fight, I’ll support you!”

An hour later, the uninjured Su Xun took away the dying white-feathered peregrine falcon.

Battlefield…

“I saw that Xiongtai’s brows were fighting against the air of black and yellow. It must be extraordinary. I don’t know if you can make friends?”

Su Xun stretched out his hands of friendship.

Thirty seconds later, looking at the opponent whose body was filled with black energy, Su Xun turned aside:

“Referee, you should speak up, or he will be poisoned to death!”

- Description from novelbuddy

The super cowardly me installed Super Coward Mode, and the terrifying extraterrestrials started to look cute.“Eating the flesh of an extraterrestrial deity? You’re not human! Ew!”“Even withstanding mental manipulation? What kind of monster are you!”“Enslaving an extraterrestrial deity? You must be out of your mind.”…And then, the reactions around me became strange.