MTL - Legend of Swordsman - Chapter 6370 bottleneck

Qi Tian was determined to design the most advanced aircraft engine but accidentally lost his life while saving others. He then transmigrated to the National Master Manor in the Cultivation World and became a disciple of the National Master, with an extra engine appearing inside him.Whether it's enemies or spirit stones and elixir, they all can serve as fuel for his engine. With the engine roaring, his cultivation journey is as unstoppable as a flying plane.As a National Master, he assists in setting up emperors and selecting heirs. The nation thrives, and the people live in peace.As a cultivator, he sweeps away all kinds of spirits and demons. Emperors bow their heads, and warlords make way.What did you say? A monk wants to bring three great demon cultivators through here? Can you tell them that my engine needs an upgrade?[This book is written in a refreshing style, making reading easy and relaxing. Your support is greatly appreciated.]

The strongest hero of humanity, Kim Sung Bin.

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?

Years ago, Earth was indoctrinated into the “System.”Earth was not the only place with the System, however. With the System came the other races, Invaders. The Invaders had one goal, to obtain ownership of this new habitable planet. This created a bloodbath, and for years the war raged.This didn't really have much to do with Derek. Derek was kind of a loner. Yeah, he enjoyed the occasional chat or drink with others, but he never stayed in one place too long or really got to know anybody new.Derek did happen to be rather strong. After the years of fighting monster and Invaders alone, he had become quite adept at surviving. One thing that helped keep him alive was his refusal to get involved with others. He rarely cooperated with teams.One day, Derek broke his rules and decided to lend some help, as the mission didn't seem too hard. He should have stuck to being alone.