Monster Factory - Chapter 57: Time to make some trouble

Amidst a disaster, an orphan contracts a sickness.

Lucas Yohan, originally born in a world filled with magic and mana, gets transmigrated for the second time into an advanced interstellar world that blends strange magic and technology in ways he never thought could be possible. Upon awakening, he discovers that his transmigrations were no coincidences and is now in possession of the Crafts-God System, a system dedicated to creating a new successor to the deceased Crafts-God, who is an existence with the ability to create anything and everything. Lucas decides to fulfill the goal of the system and become the new Crafts-God, but he’s faced with an incredulous challenge; he can’t learn magic.

Born with a seed of immortality, he rose from the Han tribe at the end of the century, and embarked on the road of immortality, step by step, until he reached the other side of immortality.

Efforts will pay off. For cultivators, what better golden finger is there?

- Description from novelbuddy

Sam Sanderson is envied by many for his job, however he himself didn't seem to like it much.

Due to his expertise in nanotechnology he was tasked with monitoring the state the Valkyries, humanity's strongest weapons who all just happen to be made into gorgeous females.

Forbidden from even touching any of them, Sam spends his days in agony watching flowers he couldn't hope to touch. However one day all of that seemed to change.