Ian Percus, the second son of a countryside Viscountcy.
One day, he received a love letter from the future.
'If we don't protect the future, the world will perish.'
With an ominous warning scribbled by someone

Starting from today, I am retired. But what should I be doing? I neither have the skills, nor the mind to do business, my only advantage is this pair of hands which have taken this world. What a headachea|
Note: The usage of the term aretireda here doesnat mean retiring from old age, work etc. Itas a specific term to refer to not involving oneself in the affairs of a certain society.

Raonas entire life had been lived as a dog on a leash.
Through a twist of fate, he obtained a new life.
Wrath remained in the wreckage of his destroyed leash.
Finally capable of standing on his own feet, he decided to live life by his own will.
He would slay anyone standing in his waya|
Even if they were a god.

In the Stone Axe Tribe, a band of young warriors, led by the spirited Urich, embarks on a hunt in the forbidden Sky Mountains. Unknowingly, they cross into an unseen civilization, revealing two distinct worlds divided by the mountains. Urich, a curious and charismatic barbarian, is enthralled by this new world of endless wonders. Join Urich as he explores unfamiliar lands and make thrilling discoveries, and unexpected alliances.

The only game in my life that makes me laugh: The Lands of The Lunerra... I played this game for six thousand hours in three years, and the day I thought I had done everything I could in this game, I felt a great emptiness inside me. I thought nothing in my ordinary and monotonous life could make me happier than when I played this game. But it didn't take long for me to realize that I was wrong with an e-mail I received the night I finished the game.
----
Hi! Thank you to everyone who came to read this story. There are two things I want to tell you.
First of all, I first started writing this about two years ago, but I was writing in my native language, Turkish, and on a different site. But unfortunately, the website where I published the series came to the brink of collapse. While I was thinking about where to publish the series, I remembered Webnovel and here I am. So this is my first English novel and I believe I will make mistakes while translating. Please forgive me for these if you encounter some of them. I will do my best.
Second... yes, while writing this novel I was inspired by most of the novels I've read so far. Like The Novel's Extra, that novel is a pure diamond for me and I don't think I will ever reach the level of that thing. So I want to say the first few chapters may feel familiar to you, but I'll do my best to smooth it out.

Liam Sera Banfield is a reincarnator.
He was reincarnated into a fantasy universe of swords and magic, but at a time that civilization was already making advancements into outer space.
The setting takes place in an intergalactic empire, a space opera-like universe where humanoid weapons and spaceships do battle.
Liam, who had incarnated into an aristocratic family in a monarchic society, has the ambition to one day become an evil lord.
In his previous life, Liam had unfortunately lost everything and died in despair.
a Itas foolish to live for others.
a I will live for myself.
Holding those feelings in his chest, he starts towards his second life, but is instead worshipped as a virtuous ruler from his difference in values.
Will Liam be able to safely become an evil lord?

One day, I woke up only find out that Iad become a Demon Lord, an individual responsible for protecting a dungeon. The world Iad been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeonas defenses in hopes of living another dayaor at least that was what Iad thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.
This is Yukias story, my story. It tells the tale of how I spent my days after settling down in a dungeon with a self indulgent, asupremea dragon girl and a young vampire.

I got sucked into a novel full of villainesses, and taming them is the only way to survive!

Yaoniang was the concubine of Jin Wang in the last life, but she had only been doted on for a few months before she died.
After her rebirth, she decided to live safely and protect herself. So she would do a job well as a wet nurse and never pursue luxurious life.
However, it never occurred to her that stern-faced Jin Wang who only did things without discussion in her last life would now take initiative.
Everyone in the world knew that Jin Wang had a concubine which was doted by him as early as he lived in original place. After entering the royal palace, she was even more prestigious and Jin Wang only doted her in imperial harem.
There were many rumors in the folk villages about the concubine. The only thing that was well known was that before she entered the royal palace she was a widow and it was said that she also had a son.
During the time Jin Wang became the emperor, he was diligent and managed the country well. He worked hard to improve his governance as a wise emperor. However, he was frequently crazy about the concubine, which made people criticize a lot.
And one of the most absurd things he did was to recognize the son the concubine had as his own kid.
To this, Jin Wang personally came out to refute the rumor:
aItas my own son.a

Suddenly appearing in a different world, it looks like I got caught up in a Hero Summoning. And of course, Iam not the Hero, but itas another guya|a|and while being very cautious and scared of the cliche of the cliche-like development, I was thrown into the maelstrom of wara|a|or not.
The Demon Lord? It was defeated a thousand years ago. Hero? Heas just the main actor in a festival. Nobles? Theyare kindly taking care of us. The Demon Race? They have good relationships with Humans. Wars? Itas already 800 years since the last one. Monsters? The Guild and Order of Knight are taking care of them. Return to Earth? It is eventually No-Risk.
What Iam planning after being caught up into this? Iam gonna enjoy the life in a different world as much as I want to, go on a cultural exchange and sightseeing, and after experiencing the festival that is only held once every ten yearsa|a|I shall go home safely.
The other world wasaaat Peace.
A kind world where the three races, the Spirit Worldas Magical Races, the Celestial Worldas Divine Races, the Mortal Worldas Human Races, they are kind neighbors to each other, with everyone living a peaceful and fulfilling life.
But although I wished to peacefully spend a year before my return, for some reason, the heavyweights of this world keeps gathering around me, anda|a|

Unrivaled Spear Knight. The stereotype that knights must use swords is broken by the brightest star of a dukeas family.
The hero that brought an end to the empireas civil war. The name of that person is Joshua Sanders.
Despite his reputation of being called the empireas unrivaled spear, he was bleeding dark red blood.
Not just anyone but by the hand of his own emperor, Kaisera| aKaiser! Donat think it will end like this!!a
Moments before death, incurred by magic circle, the spear that spent its years together with him, aLugiaa, started to emit an enormous amount of energya|
This familiar place, it canat bea| the stable that I used to live in when I was young? My body became young?!
Lugia, what the hell are you? Joshua returned to his younger self. His ultimate revenge starts here!

aCompared to our time, the current generation just arenat as reliablea they said, aStill, isnat he the son of the Hero?a How annoying.
Itas been over ten years since the battle between mankind and the demons ended. The children of the heroes who saved the world are all grown up.
One of them, Earth, was a talented man, and everyone expected him to succeed his father as a warrior and defend his country, but Earth was always wary of his fatheras title.
One day, Earth is shocked to find his fatheras sword, which was used to overthrow the Demon King, sealed in his familyas mansion.
Because trapped within was the ghost of the Great Demon King who was unable to pass on and continued to roam the world.
For some reason, only he could see the spirit of the Demon King, and the Demon King possessed him through the sword.
Every day, forced to coexist with the spirit of the Demon King, they live a strange shared life, when the Demon King whispers to Earth on a whim.
aI have a grudge against your father. If you want to get back at your father and the world, Iall train you. Iam free.a
Earth receives special personal guidance from the Demon King just to get back at his parents and the world.
Then, in the coming days. The heroas parents, the heroes of the past, the first love, the princess childhood friend, the geniuses of the era, and the world will tremble.

To save the hopeless Dark Fantasy World, I held back my tears and destroyed the world, then killed the Demon King and returned.
Now, Iam trying to save the world using the aSystema I gained as a aRegressoras Privilegeaa| But the Main Heroines have also awakened their own memories of the previous timeline.
God damn it.

When I opened my eyes, I was inside a novel.[The Birth of a Hero].[The Birth of a Hero] was a novel focused on the adventures of the main character, Choi Han, a high school boy who was transported to a different dimension from Earth, along with the birth of the numerous heroes of the continent.
I became a part of that novel as the trash of the Countas family, the family that oversaw the territory where the first village that Choi Han visits is located.
The problem is that Choi Han becomes twisted after that village, and everyone in it, are destroyed by assassins.
The bigger problem is the fact that this stupid trash who Iave become doesnat know about what happened in the village and messes with Choi Han, only to get beaten to a pulp.
aa|This is going to be a problem.a
I feel like something serious has happened to me.
But it was worth trying to make this my new life.

The weak prince of an insignificant country, Davey. After becoming comatose, his soul escaped to a temple where the souls of heroes gathered.
He trained for a thousand years and has now returned as a max level hero!
aJust you guys wait, Iam gonna face you all head-on!a
The refreshing story of Daveyas royal life and revenge has just begun.

One day, I woke up only find out that Iad become a Demon Lord, an individual responsible for protecting a dungeon. The world Iad been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeonas defenses in hopes of living another dayaor at least that was what Iad thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.
This is Yukias story, my story. It tells the tale of how I spent my days after settling down in a dungeon with a self indulgent, asupremea dragon girl and a young vampire.

When I woke up, I found myself inside a spaceship.
I guess you guys think Iam talking nonsense here, but I also have absolutely no clue about what exactly happened to me.
I was really close to completely losing it, but fortunately, I managed to notice that this place was really similar to the world featured in a game I was playing recently.
Am I dreaming? Nope, itas no dream. Maybe I actually got sent to a different world or something?
But didnat those things usually involve getting sent to a magical world with elves, dwarves, dragons and whatnot?
In any case, I donat know what caused this, but I guess Iall just have to suck it up and live properly in this world from now on.
Itall be okay. I got my trusty spaceship so I can probably make some money. Itall work out! It has to!
This is the story of a man abruptly thrown into space along with his private spaceship. He runs around with it and saves damsels in distress along the way, flirts with said damsels, earns money as a merc-for-hire and uses his gaming knowledge to work his way into living freely and easily.