There was a mage called ‘The Lone Demon King’ at the frontier.
He was just a creature that never grew old, but he was loved by the villagers as something of a guardian deity.
However, he was destroyed by a magic organization that sees his existence as dangerous.
200 years later, he is reincarnated as the second son of an aristocrat and obtains the strongest magic power.
“Let’s pretend to be a human this time”
However, being a human lover, he didn’t particularly think of revenge and has decided to pretend to be human in this life.
In his past life, he was the guardian deity of a region, and in this life, he’s a local aristocrat, but he does not know common sense. He doesn’t know how to take it easy.
As the second son of an aristocrat, he is loved by his family and friends, and while he is regarded as a master of magic in the magic guild, he becomes an ‘Immortal Mage’ behind the scenes.

Webnovel Raw: https://ncode.syosetu.com/n9450fl/

In a world where humans and demons clash — the one who decimated the Demon Lord’s army was a lone hero named Lloyd. Possessing power so immense that he was said by the Demon Lord to be near godlike, after the war, Lloyd was appointed by the king to be the lord of a remote territory and was sent far away. Furthermore, he was tasked with subduing the Emperor Dragon residing in that land, which he quickly defeated. However, the defeated dragon transformed into a beautiful woman and chose to become Lloyd’s companion!? This is the story of a man, hailed as the strongest, yet unable to recognize his own worth, finding a “family”.

Kuruto gets kicked out of the hero's party for being too useless. However he discovers that in everything else, like cooking, building, magic tool crafting, etc., he's SSS rank.

Losing his memories, the curtains of the story of alternate world transfer of the MC rises. After the transfer his name changes to Kelvin. While steadily levelling, he adds new subordinates by mastering his skill. And by the time he noticed it, he had obtained overwhelming power. Where will our MC be heading off to?

(Bad luck and Good luck are like two sides of the same coin!? Defy the misfortune!)

Siegbert reincarnated after an accident because of his bad luck. His new family is so warm that he can’t believe that his past life was a stroke of bad luck. In this life, he thought he would be able to spend his peaceful life… but he holds unbelievable [luck value]…?

(Good luck attracts opportunity. If you can seize it, your wish will come true!)

The family and others are in desperate, after strong enemy (chance) one by one stand in the way!? No, I will hold it with my extraordinary magic power and appraisal eyes. (seize it)

From “Shousetsuka ni Narou” A heroic tale of a boy who becomes the strongest to protect his warm family! Also includes a newly written novel from the original author.

A polite and lethargic boy was reincarnated in another world as a vampire bishoujo. In this world of swords and magic, this protagonist who was reborn replete with all kinds of cheat powers was searching for one thing――! “Three meals a day, snacks and an afternoon nap, I guess.” Are you really the protagonist! And thus begins the fantasy comedy of a vampire looking for the ideal moocher lifestyle…?

The Jester ― More commonly known as the ‘Playboy’ Dylan, was fired from the party of the Heroes. The self-centred Heroes didn’t understand Dylan’s importance to the group.
They were just a group of one-man teams. Not interested in cooperation at all. Any failures are blamed on the Jester. Dylan, who was disgusted with such companions and was sick of playing as their comedic foil, happily accepted being kicked out.
The Heroes didn’t know. After saving them many times over with his magic tricks, the level 99 Jester can change his job title to that of a ‘Great Sage’.
“Life, how about a rewrite?”
He’s done being the clown. From here on out, he’s going to take the leading role.

He is the king of the demon world who has become unemployed because of impeachment. She was the brave hero who was laid off because of the failure of the expedition. The bond of destiny binds the two together as they embark on a journey full of unknown adventures.

Due to misunderstandings of the boy, he makes both enemies and allies angry!?

He may be strong, but can't be ignored!!

Supposedly the weakest boy who mastered martial arts and magic, the world shakes his misunderstanding!?

“Hmm... I have no talent.”... is what Yuan grew up in the mountains thinking. He's a normal kind-hearted boy, but of the unusual things about him, is that his parents are a sage and a master martial artist. In other words, the world's strongest. Since Yuan was told he was the weakest, he leaves home to make his dreams come true.

“Eh!? Is it really possible to be defeated with a mere finger-flick by an 8-year-old kid?”

“You heard the hero was the weakest member? You'd have to be out of your mind to fight that!”

“Armies of Angels? You mean the harmful birds? I'll just remove them altogether!”

Now, the boy who sees dragons as just lizards you can eat regularly thinks (I am weak. I'll have to get even stronger or else I'll never become a noble knight), will he ever be free from his misconceptions!?

Banaza, who got summoned to the magic kingdom of Cryroad as a Hero candidate, due to having only the abilities of only a regular citizen, got treated as a disqualified Hero. He, who originally was supposed to be returned to his original world, due to the magic kingdom's mistake, became unable to return to his original world, inevitably has to live in this world. That kind of person, the moment he became Lv2, acquired all skills and magics, and transcended into a super cheat with all ability points broken through the limit! Even so, he does things at his own pace with an easygoing smile.

Just like how everyone adored heroes in their childhood, a certain young man adored those powers hidden in shadows. After hiding his strength and living the mediocre life of a mob character by day while undergoing frenzied training by night, he finally reincarnates into a different world and gains ultimate power. The young man who is only playing at being a power in the shadows, his misunderstanding subordinates, and a giant organization in the shadows that gets trampled….. This is the story of a young boy who had adored powers in shadows possibly eventually reigning over the world of shadows in another world.

Rokuro Enmado is from a family of exorcists who remove evil Kegare, but his real dream is to be a singer, a soccer player, or anything other than an exorcist. When another exorcist, a girl named Benio Adashino arrives, Rokura is suddenly inflamed with competitive spirit and decides to put his natural knack to good use. Their rivalry gets more complicated when they both learn they are the destined "Twin Star Exorcists," two ultimate fighters fated to marry and create the prophesied child who will eliminate all the Kegare in the world.

Having graduated from the prestigious Witchcraft Institute at the top of his class, no job is out of reach for William Glenford. But William dreams of only one thing: adventures.

The Hero’s party was attacked by a large group of powerful devils. The party will no doubt be annihilated if this were to go on.
One member of the party, the strongest mage, Rakku decided to stop the enemies in their tracks.

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.

"It’s foolish to live for others. 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?

[You have entered the dungeon at Gwachun Station's 1st Exit.] Wait—? What is this??

A necromancer returns to Earth after 20 years and enters...the subway station? No, it's a dungeon.

Bow down to the splendor of my one man army as I begin to seize it.

Alexander Purchinov is president for life of the country of Pursia, a country ruled by violence and the influence of its government. Alexander always desires to be dominant, and "ride" things, whether literally or figuratively. Now that he has already ridden his country, his next target is a fantasy world that has orcs, wyverns, and centaurs.

I, who should have died after being hit by a car, was born again in another world.

However, I was born in a shady minor family that used magic and controlled wooden puppets called the Marren Clan.

Possessing a strong interest in magic since my previous life, I spend my time zealously studying magic to the point where even the people in the vicinity draw back.

One day, I heard I was to be married to my little sister when I turned 16 in accordance with the traditions of the Marren Clan and decided to flee to the city.

For now, since I have the strongest magic, I guess I should idle around making only enough money so that I don’t have to work for my whole life.

Olivia is picked up by a death god, Z, deep in the forest as a child and trained by him in combat for reasons unknown. One day, Z disappears, leaving behind a letter instructing Olivia to head to the Kingdom along with a sword bearing the qualities of a death god's weapon. Thus, the girl lacking in common sense, knowledge, and normalcy sets off to join the army.

“Classes” are given at the age of 10, and the presence or absence of “skills” greatly affect life. Arel, the son of “Sword Princess” Fara and “Magic King” Leon, has been branded as “Classless”... But even without a job or skills, Arel believes he can persevere through effort.