The Undead King of the Palace of Darkness (WN) - Chapter 85.1: , Ancestor

Mark is a genius military weapon designer who was kidnapped by a mafia gang after refusing to work for them.
They forced him to design unique weapons for five years, until one day he successfully escaped only to get shot by his trusted comrades.
*Ding! You awakened a weapon system.
When he opened his eyes, he was in a different body and in a different world.
"You want to kill a wild boar without being detected? Forget about bow and arrow. Here, I present you this sniper rifle."
"You want to kill a horde of goblins from the sky? Forget about those flying carpets and brooms. Here, I present you the fighter jet."
"You want to kill a dragon? Forget about taking the help of the S-class adventure team. Here, I present you a nuclear bomb."
Join Mark Spencer/ Lu Zhen as he brings the whole world to its knees with the help of his weapon system.
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Note: Author isn't born in an English-speaking nation and has no editor either. So, please be understanding if there are any grammatical errors.
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The legendary tale of the Xyrin Empire is not about its struggles... or the tempest of another world or some cultivation myth. This is a super-serious, super-hard sci-fi novel about saving the world.Take what I’m saying seriously...Not.Okay, this is just a funny story about a deceptive human emperor, bringing his bunch of slippery alien leaders to have fun saving the world every day.Chen Jun is an unmotivated otaku who turns into the Emperor of an ancient intergalactic magic sci-fi empire. With the aura of a stay-at-home dad, he is nothing but a middle-aged man who adopts a group of lolis... and an army of freeloading aliens that came out of nowhere. Er, what?Ahem. Really though, this is a super-serious story... a super-mega-ultra-serious sci-fi story.For the Empire!

The boy who Sneaks in My Bedroom Window

In her previous life, she died of hatred in a gray robe.

The former cannon fodder was reborn, opened the inheritance of the mysterious jade pendant, washed out the top meridians, and rose to the top in red.

Those who persecuted her, hindered her, calculated her, died! !

There is a jade pendant in hand, and countless treasures are detected, all of which are welcome. She frowned and looked at the man in front of her, and said lightly, “I’m sorry, I made a mistake, I took it wrong, and you can go.”

God knows when this man was taken over by her and hurriedly threw it away. “Don’t make trouble, madam, go home, you are the oldest in the family.”

- Description from novelbuddy