Legendary Extraction: Kingdom Builder in a Ruined World - Chapter 2: Karma.

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.

Yi Ti resented her name. From an early age, she couldn’t get away from the nicknames “ET” and “alien”.

But no one thought that one day, she would actually meet an alien.

Scared by the other, it seemed like she screamed……

She fainted, then fell face down or something like that……

She seemed to have gotten a bloody nose from being knocked out……

She doesn’t remember any of this!!!

The only thing she cares about is that after she fainted, the alien actually dragged her, chest down, back home – does the alien not feel ashamed?!

- Description from Novelupdates

He approached her and announced domineeringly, “Ten million, you're mine!” Little did he know that she would smash his head and flee in panic! Five years later, for the sake of her young son, she endured humiliation and became his wife, always on guard around him, “Get out, what are you doing coming in?” His handsome face darkened, “Woman, you couldn't have forgotten that we are husband and wife, could you?”