Lord of Caldera - Chapter 21 - You Haven’t Contributed Anything

He lived from BC to the Middle Ages, from the Renaissance to the Industrial Revolution, and from Cyberpunk to the Interstellar Age. He has been a king and a prophet, a knight and a nobleman, a versatile artist, a genius inventor…
This is a four-thousand-year human epic——
“To us four thousand years from now:
“Is the world at peace? Is famine extinct? Can people touch the stars? How long is the human lifespan? How far is the boundary of the earth? Human…do you remember us?”
——Excavated from Earth Age Tenth Century BC, Solomon Prayer Book.

- Description from novelbuddy

Lu Zixin has a Black Technology Chat Group of the Ten Thousand Realms , and the group members are the science and technology giants of the world.

Tony Stark : “Group owner, I will send this War Machine Mark II Armor to you!”

Red Queen : “Group owner, do you want to try the latest T virus ?”

Skynet : “Group owner, where is your world? I am going to destroy it.”

Bruce Wayne : “The Batmobile is simply used to pick up girls and today I have a great girl. Do you want to see it ?”

Vega Punk : “Recently synthesized a new demon fruit, does the group want to try an experiment ?”

Little Spidey : “I don’t care, I don’t care, do not send me the red envelope, I will retreat!”

. . .

Lu Zixin : “A group of lawless people, be careful with me!”

- Description from Novelupdates

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!

Waking up, Kim Hajin finds himself in a familiar world but an unfamiliar body.