16 year old Koganei Koito is the miko of the Takamimi Shrine. In actuality, the deity of the shrine is a hikikomori elf who was summoned to her world 400 years prior and gets spoiled with offerings like games by her worshipers.

In the fantasy story, the demon king Leonis sealed himself away for 1,000 years in order to prepare for the final battle, but when he woke up, he found himself in the body of a 10-year-old boy. A beautiful young woman named Lisellia from the Holy Sword Academy then says to him, "Why were you locked up in such a place? It's OK now, this big sister will take care of you!" Under Lisellia's care, Leonis is shocked to see that the world has completely changed. Bewildered and confused, Leonis finds himself enrolling at the Holy Sword Academy.

Calliope has suffered through nature's law and many accidents. Her family was murdered and an ongoing war ended her life, but she traveled back in time to when she was born?! While Calliope slowly grows, will she be able to figure out who killed her family and stop them in time?

I was the villainess who would die at the hands of the male lead, but I know this is a cliché! I thought it was a pretty good deal to die unjustly, as a payment for the price I paid for being the villainess. Until I realized that I couldn’t escape from the original plotline. If I was going to die anyway according to the original, then let’s give a kiss to my handsome husband!… Why did the original plot start to change?

The story will combine the legend of a demon king with a hero who crosses over time and other things. The comedy will involve traveling between a Japanese living room and another world.

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.

I reincarnated into the world of an otome game as the villainess, “Ophelia.” I thought I'd be able to enjoy a peaceful school life, but to my dismay, I found myself subjected to constant harassment at the hands of the wicked, vindictive heroine; and to top it all off, I’m plunging headlong into the dreaded Bad Ending — hold up, as if I’d meekly submit to such a fate! If that’s how it’s going to be, I’ll tap into the top secret "cheats" known only to those who've played the game and carve out the 'Villainess Route' of my fantasies!! But for some unfathomable reason, the capture targets seem to be doting on me far more aggressively than in the original story…?
Original Web Novel: https://ncode.syosetu.com/n0411fu/

Dragged by the quarrel between brother of a count of a certain remote region. Kazami Shingo (風見心悟) was summoned into another world. The purpose for that summoning was “to make the territory prosperous”. To sum it up, it the typical summoned into another world thingy —- so was what Kazami thought at the time.「But, I’m only a mere veterinarian.」However, never underestimate a fantasy world. This world has dragons, monsters, and many other races. The difference of language, magic, food, religion, common sense, and many other aspects from Earth were also endless. Even so, the veterinarian become a public servant and for the time being performing autopsies, medicine making, and improving agriculture.Not as a hero, not as a doctor, but as a veterinarian, and this is the story of how he do his best in making this another world as his new house.

A story about a man who wants to make a zoo full of mythological creatures in isekai.

The protagonist is a player of a VRMMOFPS game who ends up falling off the map while playing in PvE mode, and ends up being transported to a fantasy world with his FPS system.

If you accidentally crossed over into another world, what kinds of abilities would you need to reach your peak in life? Would you became an Enchanter? A Hero? Or maybe a Cultivator of Immortal Techniques? Of course not. You would take advantage of your present day knowledge in this other world to do business and earn big bucks!

A widely popular TV animation series "Magical Girl ☆ Charming Luluna". Niimi Reiji, is a huge fan mahou shoujo otaku.
One day he died while saving his friend's daughter suddenly reincarnated in a different world. But, as a magical wand rather than a human being!
He has ability to Make(forced) a beautiful girl that you met into a "Magical Girl" and turn it into a magical (physics) power in a different world!
Beginning in a different world adventure of Magical Girl Saga to fight demon king forces, start!

Sei, a 20 year old office worker was summoned to a different world after finishing some overtime work. But the person who had summoned her looked at her face and said, “This is not the Saint.” Is this neglect play!?

Sei left the royal palace and concealed her saint title. She started working at a laboratory where she made potions and cosmetics. She used her magic to grant people’s requests and slowly people began suspecting that she was a saint…

Can Sei enjoy her slow dreamy different world life without her saint title being found out?!

I'm done with romance, so send me home!

Kim Yi-Young was just an ordinary civil service exam candidate in South Korea.
After studying for more than four and a half years, she finally passed, a truly ordinary person with nothing but reading novels here and there as a hobby.

However, on the day she went out for a celebratory meal after passing the exam, she got into a traffic accident and died, only to find herself reincarnated into the fantasy hunter novel she was reading.

To her, the "System" offered a way back home.
Determined solely to return home and cuddle her warm cat and adorable Maltese, Cerberus, she gained strength through dozens of regressions.
Signing contracts with the constellations of the original work and dying multiple times, she eventually succeeded in conquering the "Tower" of the original work and defeating the owner of the tower on the final floor.

Now, all that's left is to go home......

Or so she thought!

[Due to an error, instead of returning to the original world, we will reincarnate you into the author's new work!]

I don't need that! All I wanted was my sweet home!
Is that so difficult?! I even got rid of the Tower!?!?!

Moreover, romance fantasy?! Even in my previous life, I didn't care about romance, not one bit!
And to top it off, I didn't even reincarnate into my own body this time, but into the "villainess" of the book!

I'm not afraid of the threats in this world, but I'm worried about being forced into a romance quest.

Can I go home......?

It has been seven years since Sora Ono was sent to another world, where she was enslaved. Because of a clerical error, her “slave” status was revoked, and Sora walked away a free woman. Then one day, she purchases a slave...

Ryouma Takuma, a 39-year-old man with a hidden past, finds himself in a strange white room. The gods tell him that he has died and they are sending his soul to a different world, a world where magic exists. Living alone for 3 years, his gamer soul loses common sense and starts heading toward crazy routes.

I suddenly remembered. This world is the world of an erotic manga, and that I was reincarnated as the scumbag who is supposed to steal the heroine in this world. Well, I don't have such a hobby, so I thought the heroine should get along with the protagonist. But why are you paying attention to me, heroine?

“I'm not just a foil!”

In order to stop more people from reincarnating into his world, the former elite knight leader sets out on a mission!

An unprecedented comedy about preventing any and all reincarnation is about to begin!

Sansui died and was taken to god, where he explains that due to his mistake he killed Sansui, and as an apologize god said that he would reincarnate him in another world with the power he desires. Sansui desire to be the strongest in the world, but soon realizes that his desire may be the most difficult test of his life.

After his class gets buried alive on their way back from a school trip, 18 year old Makoto Takatsuki and class get transported to another world. Unlike the rest of his classmates who gained powerful abilities, Makoto barely gains any power. "This other world is unbalanced!". With the threat of a great Demon Lord rising again and a goddess with zero followers, can Makoto make his way through this new world and clear the isekai!