Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 1, Extra

This is a time of great powers: The vast Persia, Sparta that was founded by force, Athens with its trade and business, Thebes the rising star, The ambitious Macedonia, The twin heroes of the Western Mediterranean, The rising Rome and so on.

This is an era of brilliant stars: Agesilaus II – the last king of Sparta, Epaminondas – the Rising General of Thebes, Philip II – the founder of Macedonian’s hegemon, Dionysius – the tyrant of Syracuse, Camillus – the Roman dictator and savior…

This is an era of contention among a hundred schools of thought: Plato – the great philosopher, Antisthenes – founder of cynicism, Pythagoras – school of number, Democritus – the encyclopedia scholar, Hippocrates – the father of western medicine, Aristophanes – the great dramatist…

What will the hero bring to the world when he comes to this age as a humble mercenary through rebirth?

He was once the most feared villain in the empire, a master of manipulation who wove chaos from the shadows. Ruthless, untouchable—until the day he was betrayed and executed by the very man he sought to control.But death is not the end.He awakens in the body of Lady Elara Valcrest, a fragile noble girl doomed to be a pawn in political games. Stripped of her former power, she is forced into an arranged marriage with none other than Cairon Everhart—the man who once killed her. He does not recognize her, but she knows him. And she will never forget.To survive, Elara must play a new game. One where deception is her only weapon, and trust is a dangerous illusion. She must outmaneuver her enemies, uncover the truth behind her execution, and reclaim the power she lost. But as she navigates the treacherous world of court intrigue, one question lingers—Was Cairon truly her greatest enemy? Or had she been blind to an even greater threat?Time is running out. The villain has been given one last chance. And this time, she refuses to lose.

The whole people cross the border of mountains and seas.

Start a thatched hut, build a house, farm, and raise exotic animals?

Su Mu, who was reborn, said, I just want to live in peace and quiet.

Every day, I take a thousand-year-old strange beast for a walk, and a ten-thousand-year-old giant beast for a walk.

Occasionally go fishing for a few mermaids and come back, the days are free and comfortable.

When I get bored, I kidnap a dragon girl and come back to play with it.

Hey, I’m just playing….!

- Description from novelbuddy

In the age of giant ships and cannons, in the digital interstellar era, there is no martial arts, no mechs, pure interstellar warfare, and giant ships and cannons fighting against each other.

There are digital warships, frigates, destroyers, cruisers, battleships, dreadnought flagships, Titan super flags, and even mobile fortresses and mobile battle stars.

The passionate interstellar battle, the battle of civilizations, and the battle of thousands of titans super flag.

Countless alien civilizations compete for living space, and the result of the failure of the cruel civilization war is the end of civilization, and the survival of hundreds of millions of species is in your mind.

The flesh and blood are weak, and the machinery soars.

Design evolution, gene soaring.

The heart is better than things, and the spirit can soar.

Spiritual disasters, insect disasters, high-dimensional demons, and the agreement to revive.

Key words: leading the mainstream, data flow, interstellar war, farming, the fourth natural disaster, planetary warship, star fortress, four-dimensional fortress, negative star, etc.

Starting point is the only data-based interstellar war novel, there is no similar genre, don’t miss it when you pass by.

The author also has Wanding’s old book [Global Age of Gods] to enter by clicking on the author’s name.

- Description from novelbuddy