After falling into the ocean, Wataru Toyoumi, finds himself reincarnated in another world! Armed with a skill to allow him to summon boats he plans to get rich and live a happy life aboard his very own luxury liner.

Zechs has a younger sister. Her name is Caron, and he loves her very much. However, if things continue as they are, she will die an untimely death. This world is the same as the RPG romance game he played in his previous life where Caron is destined to die in every route. There was no way Zechs would allow his beloved sister to die so cruelly - that's why he'll resist fate to the bitter end!

Original Web Novel: https://ncode.syosetu.com/n5205hi/

William is the lone human in a city of the dead. Born with vague memories of a past life in contemporary Japan where he failed to do anything useful, he is determined not to make the same mistake again, and that this time, his life will be lived. But what does that really mean? Raised by a group of the undead, William must discover what circumstances brought him to this city and these people as well as what it means to not just exist, but to live a full life.

Zarmen, an adventurer who can't level up decides to retire from the adventurer business. Furthermore, in order to graduate from virginity, he decided to splurge on all the assets that I had diligently saved up since his reincarnation at a high-class brothel. The woman who appeared in front of him was the finest woman he would ever have known. Thanks to her hospitality, Zarmen fully enjoys his first time, but at that moment, his ears hear a mysterious announcement, "Impregnation confirmed.", "Level up!" "Does this mean that the more "seeding" you do, the stronger you get?"An extraordinary implantable foreign world adventure fantasy created by a bottom adventurer who has been at level 1 for many years levels up through sex!

"I did it again...!"

The Hero who can't seem to set out on his journey!!

The protagonist, who was reincarnated into another world, becomes a hero and receives the task of defeating the Demon King. To repay the world that accepted him , he decides to set out on a journey... However, he can't seem to leave the first village, as he is constantly tempted by charming heroines such as the female priestess, his childhood friend who is a magician, and so on!

Thus, the birth of the "I did it again...!" type hero!

Mahato is a former corporate slave who has been reincarnated into another world.

Through an incredible coincidence, he tames a large number of Dryad - fairies who bestow blessings upon plants and vegetation - and his stats become instantly boosted to MAX! Using his now-overwhelming power, he even makes friends with a dragon. With his newfound friends, he begins living out his dream of being self-sufficient.

He soon discovers that the crops he grows in his vegetable garden not only have the ultimate flavor, but they also grant unbelievable effects to those who eat them, like enhanced eyesight and eternal youth! And with the factory he builds using his skills, he's even able to produce beer and soy sauce?!

Thus, the unknowingly strongest protagonist begins his surprisingly slow life of farming!

In another world, the Hero and the Demon King continued to oppose each other. As their great magic collided, the explosion crossed over worlds and destroyed a classroom full of high school students. The victims who died in that explosion will be reincarnated in that alternate world. Our heroine, who has the lowest standing in the class, was reincarnated into a spider. She nevertheless faces this challenge head-on with great determination, and adapts to it surprisingly quickly. This is the story of how our protagonist, who was reborn as a weak spider monster, does whatever needed to survive.

During the school trip Touka and his classmates are summoned to another world.
However, Touka was the only one with the lowest rank: E-rank — an extremely low status compared to his classmates. Thus, the former mob-character and abandoned hero, will absolutely become the strongest devil as he advances and strikes back.

In the Great Orient, lies the continent called Rodenius.

One day, an unidentified flying object arrived at Qua-Toyne Principality’s airspace. The unidentified flying object defied the Principality’s common sense. But that unidentified flying object was just a harbinger of something even more shocking.

Far to the eastern sea, a group of islands suddenly appeared. The country of the islands called itself: Japan. According to them, their nation had been transported to another world.

Now finding themselves separated from their old world and must survive in the new one, how will Japan interact with the native countries of this world? Will they greet her as a friend or as an enemy?

This is a story of the country called Japan as it was engulfed in the chaotic storm of the world.

Basically, the Japanese version of Island in the Sea of Time. For clarity: The summoned area of Japan are the four disputed Kuril Islands, Japan Home Islands, and Ryuku Islands.

Final Fantasy: Lost Stranger was released as part of the Final Fantasy franchise's 30th anniversary project. The manga follows a Square Enix's employee who dies, and is reincarnated into the world of Final Fantasy.

A man who lost his family and fell into the depths of despair meets his end—only to be reborn in another world of swords and magic as Aldo, the heir of a noble family. He begins a new life alongside his twin brother Elphas and his loving parents. However, haunted by the fear of losing those he loves once again, Aldo starts to shut his heart off from his family. But when the roar of a ferocious magical beast threatens to devour them, the boy rises to his feet— determined this time to protect what he once lost in his previous life. A story of redemption and a second chance at heroism begins!

From MangaHelpers :
High school student Misumi Makoto is called into a fantasy world by the god Tsukuyomi, in order to be a hero. However, powerful others in this world aren't as thrilled to have him there, and they kick him to the edge of the world just as Tsukuyomi declares that he must leave Makoto to find his own way. Now it's up to Makoto to find his own way.

Da-in, ended up possessing the villain of a story.

To make Stardust — the story's protagonist and his favorite character in a dystopian manga — happy, he resolves to become the villain Egoistic for her growth.

Da-in deliberately causes terror to enhance Stardust's abilities and preemptively prevents all the tragic events from the original story, but in the process, he gains public support while also drawing Stardust's suspicion.

Stardust, who initially opposed him, gradually opens her heart, and soon even begins to show signs of obsession towards him...?

A certain girl genius with more power than knowledge accidentally summoned dozens of students and teachers into a dangerous world filled with beasts and magic, but the protagonist isn't a student or the homeroom teacher... it's the janitor.

At the time of their summoning, the students and teachers each gained a power formed from their soul, but not the janitor. As the janitor was about to be bestowed with a power that would protect him, his power was forcibly taken from him by an arrogant student. Having gone three years without a contract extension, he failed to get a job after having graduated from a third-rate university. Somehow he is still a contractor at 25 years old and was a janitor for 2 years, with a take-home monthly salary of less than ¥120,000. From a society that rejected him, he was thrust into a world that rejected him. And what janitor-san wished from the Goddess who took pity on him was...

The Star chef, KangHyun, hid in a quite countryside after losing his sense of taste where he found A pathway to another world in his grandfather's house. Since he was on the run anyway, he planned on enjoying a relaxing camp life, but... the people in the other world keep growing interested in KangHyun! Will KangHyun really be able to heal through experiencing a slow life?

In a far-off corner of another world where only nobles can use magic,
a certain thirty-something salaryman is reincarnated as a five-year-old village boy named Ren.

For him, the slow-paced countryside life is peaceful and enjoyable—
that is, until a group of adorable but terrifying little angels (a.k.a. troublemaking children) takes a liking to him.

Even though he just wants to be lazy, he ends up doing things perfectly—like playing hide-and-seek from morning till night, reading stories aloud, and calming their wailing cries—because he's just too good at taking care of others!

One day, while thinking of ways to slack off more, a monster suddenly attacks their once-peaceful village.
And when the problem children are put in danger, the usually unmotivated Ren unleashes a hidden power he's kept secret—just to avoid getting dragged into more trouble!

A laid-back reincarnated boy ends up babysitting (and saving the kingdom) in this reluctant hero’s tale!

Among the class transported to another world, Nagumo Hajime is an ordinary male student who didn't have ambition nor aspiration in life, and thus called "Incompetent" by his classmates.

The class was summoned to become heroes and save a country from destruction. Students of the class were blessed with cheat specifications and cool job class, however, it was not the case with Hajime, with his profession as a "Synergist," and his very mediocre stats.

"Synergist," to put it in another word, was just artisan class. Being the weakest, he then falls to the depth of the abyss when he and his classmates were exploring a dungeon. What did he find in the depth of the abyss, and can he survive?

Average high school student Mikagami​ Kouji is a hardcore gamer. One day he gets isekai'd and he only gets the skill "copy" which is apparently useless but we all know it's secretly OP or something. He's enslaved to be a gladiator by his summoner, the big booba, head priestess Zayd. He has to fight in the Colosseum and if he loses he gets raped.

The protagonist along with his step-mother, and 2 step-sisters are summoned into another world where demi-humans are the rulers as saviors, but its not to fight against a demon lord, its to fight an Undead Apocalypse monsters called "Dead Mell" that have overrun the world and that can only be killed by using weapons made with holy silver.

For that, a familia is made (group of 4 people) with them being the swordmaster that uses the holy sword, the guardian that uses the power of earth to protect, the healer that use the power of water to heal and the black mage that uses the power of fire to destroy.
The role of the guardian, the mage and the healer is to support the swordmaster that can only kill the monsters.

But to use magic powers one must offer part of your being as a sacrifice to form a contract with spirits, and the higher the sacrifice, the higher the power. Now they must choose who are the 3 that need to sacrifice part of their bodies to gain power and who will wield the holy sword.

Sozai Shuu, a working adult with a slightly weird habit of loving to collect raw materials, was transferred to another world by God after losing his life.

In order to live leisurely, Shuu wished for 『a power to live a carefree life collecting raw materials in another world.』His wish was successfully granted however, his magic power is strangely enormous, and his skill is really convenient? Seems like God misunderstood that he wanted to harvest materials from monsters leisurely so the power he gave Shuu was so incredible….

Nevertheless, Shuu does not take it to mind and freely uses his unique skill 【Detect】 in another world to search for materials, harvest them, eat them, make money off of them and lives a carefree life collecting materials.