Mitsuki Kou is such a feared PVP gamer that he's earned the nickname "Crim the Headhunter" in some circles. His next game to take over? "Destiny Unchain Online", a brand new VRMMO game developed by none other than Kou's father. But, no new game on release day is without its bugs - namely, Kou glitches to the middle of nowhere, and his vampire avatar is turned into a girl! A story for all of the people who through games have met new friends and aimed for the top... start!

The Assistant Mage of the genius alchemist Ruby—Lloyd has an abnormally low chance of gathering materials for alchemy use. Hence, he is treated as baggage and is made to be the bottom of the entire country’s joke.

Everyday is a day he is scolded by Ruby. It’s become too much of a despairing environment that he’s come to hate it. And so, he finally decided to part ways with her.

However, unbeknownst to everyone was that the materials Lloyd gathered were all high-grade materials no one else could gather.

The mage, who was treated as “incompetent” and saw himself as such, now aims for an ideal easy going 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!

One day, Baek Woo-hyun, an ordinary college student, returned after being transported to the dimension of Reverse Planet, the world’s most popular online virtual-reality game.

He had dreamed of coming back… but the damn game was still running as if nothing had happened, and the ghosts of the comrades who died “over there” kept urging him to avenge them at every turn.

In the end, Woo-hyun logs back into Reverse Planet to uncover the connection between the game and the other world. Fortunately—or perhaps unfortunately—he doesn’t get sent back “over there,” but he happens to appear on the stream of a certain streamer he meets by chance… and an anonymous viewer, Viewer 62, reaches out to him.

― How does it feel to have returned to reality?

A new story begins with Watanuki and Yuuko, while guests wishes are granted. Description by LuffyNoTomo

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.

A yokai who unites with the “Golden Essence” will give birth to the Yokai King!!

Chimogami Ousu, who has just become a high school boy, finds himself enrolled in a class consisting of nothing but 13 beautiful yokai girls!! Possessing the 【Golden Essence】 necessary to give birth to the Yokai King, Ousu is the yokai girls’ top candidate for boyfriend. The curtain rises on a school life filled with one love-stealing battle after another, all orchestrated by these beautiful yokai girls♡

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.

Garen, who became stranded in a dungeon, met Nemu the Corpse Bearer. A Corpse Bearer was someone who went to retrieve the bodies of people who'd died in dangerous places like dungeon depths, beast lairs, or the ocean floor. Answering the pleas of the bereaved who said, "I want them back even if it's just their body." Nemu continued to travel to dangerous places, carrying corpses back home.

From a very young age, people noticed that Maria, the youngest daughter of a duke, was filled with potential. She was raised as the heiress of her house, until the birth of her baby brother relieves her of her duties. She scrambles to find a husband, but all the eligible bachelors in her duchy are taken!

At this rate, she's doomed to the life of a spinster!

Maria decides to study abroad in Rubini in hopes of finding a husband, with the help of her distant relative, Aida. But in a twist of fate, the Crown Prince breaks of his engagement with Maria, even though they've never met before!

"Huh?! I don't remember getting engaged!?"

Enjoy this fluffy romcom with a late-blooming villainess!

Lee Joon was an ordinary high school student.

During the entrance ceremony, he was caught up in a strange phenomenon and died.

[You have died.] [Restarting from checkpoint.] [Loading…]

But then, a message appeared before his eyes.

『Congratulations on your acceptance at Nakseong Highschool, the school of secrets and mysteries. Uncover the shady secrets hidden within the school, or fight against the legends and ghost stories of the campus in order to earn points to unlock special abilities. Additionally, you must gather comrades to prevent the resurrection of the Demon King before graduation. The world is in your hands.』

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.

Despite being from a prestigious noble family, Bridget, a failed daughter who made a contract with the weakest spirit, one day had her engagement broken off by the third prince, Joseph.

However, no one sympathized with her, who was acting as a proud daughter at the behest of Joseph... At that time, Bridget meets the Duke's son Yuri, who is feared by those around him because of his overwhelming ability and cold personality.

Two people who hate each other and repel each other. However, the encounter gradually changes their destinies. This is the story of a villainess who is despised for being incompetent and a villain who is shunned for being a genius who eventually fall in love.

Web Novel: https://ncode.syosetu.com/n9923hb/

The enormous cave system, known as the Abyss, is the last unexplored place in the world. Nobody knows how deep down goes this titanic pit, inhabited by strange and wondrous creatures and full of mysterious ancient relics which purpose in unknown to modern man. Generations of bold adventurers have been drawn by the cryptic depths of the Abyss. In course of time those brave enough to explore the dangerous pit came to be known as "Cave Raiders."

In Oosu, the town at the edge of the Abyss, there lives a little orphan named Rico, who dreams of becoming as great a cave raider as her mother was and solving the great mystery of the pit. One day exploring the murky depths she stumbles upon a little boy, who turns out to be a robot...

Tamashiro Neko is a young witch in training, sent off by her parents to finish her studies. In her search for a place to stay, she arrives in a quiet town in the countryside, but then her first trial 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.

...You did read the title, right?