Kang Ji-hoon, an ordinary high school student who died in a painful accident, finds out in the underworld that he is actually a ‘Water Spirit King mistakenly born as a human’. “Making water spirits? How do you do that?” The adventures of Elqueeness, the Water Spirit King who was mistakenly born as a human!

In a dilapidated castle, Astaroth awoke as a Demon King.
With his ‘wisdom from his past life,’ he would rule over his lands as a thorough ‘realist.’

“Demon King, why are you attacking the level 1 Heroes?”
“Defeat them before they become stronger. That is called strategy.”

“Demon King, why are you sending fake money to the enemy country?”
“To bring chaos to their economy, so they will self-destruct.”

“The werewolf troops have attacked. Should we use silver bullets?”
“Not bullets, shoot them with canons.”

And like that, Astaroth ‘reformed’ the old tendencies.
He became a lord who was loved by the people and his subordinates, and he would go on to be called the most powerful Demon King in history.

Some 20 years have passed since the protagonist was summoned to another world and retired from the army. He is still single in his 40s and lives as a low-ranking professor, until one day, an elite 'monster girl' transfers into his class.

If you're reincarnated in another world, you will be naked and alone in the forest. The only things you can rely on without magic or cheats is your wits and fists!

Author's Twitter: @yazin_uhouho: https://twitter.com/yazin_uhouho
Web Novel Raw: https://ncode.syosetu.com/n5771ei/
Alternate Raw: NicoNico: http://seiga.nicovideo.jp/comic/41841

I was reincarnated into the body Cecilia Silvie, the villainess of an otome game.
According to the plot, what awaits me in the normal route is either a slow, painful death or an instantaneous one... Essentially, every route leads to my demise.
Then I'll change my fate! And that's why I decided to become a man.
However, I made a mistake during a certain event, and the story began to head down an unexpected path...?

One day 's lunch break, suddenly a male high school student Yuzo Ogata being transferred to another world of sword and magic together with four other friends.

According to the Princess of Space-Time Magician, a foreign world who summoned them, they want them to beat the Demon Lord as Heroes to save this world.
Suddenly I was surprised at four friends "Temple", but it was a relaxing expression ... ... where the princess told of a startling fact!
"`―― There should only be four braves though?"
"A man who was mistakenly summoned to a different world" What will be in store as to his fate?

Source: http://konomanga.jp/manga/taitei-cheat

Dirty oldman isekai

Fantasy harem-comedy begins with a kind-hearted uncle who helps the weak, crushes the strong while doing some consensual seeding here and there.

D.Gray-man follows the adventures of 15-year-old Allen Walker, whose left arm can transform into a monstrous claw and destroy akuma, evolving machines created by the Millennium Earl to help him destroy humanity. As ordered by his master General Cross Marian, Allen becomes an Exorcist, people who can destroy akuma, for the Black Order, an organization attempting to stop the Earl. He becomes a powerful asset for the Order because he can detect disguised akuma with his left eye. Allen is sent to recover pieces of Innocence, a substance that gives certain people, called Exorcists, the ability to destroy akuma. The Earl decides to call together the Noah Family, superhuman descendants of Noah who can destroy Innocence. Both sides start the search for the Great Heart, the most powerful piece of Innocence that will assure victory to the side that finds it.

***Contains spoilers for the ending of Part 1***
After the discussions with the temple master and head priest ended, Myne won the right to be treated as a noble with the role of a blue-robed shrine maiden apprentice.
Work in the temple began and Myne could read books in the long-awaited temple library.
However, there were many problems in the temple, such as adapting to the class system and dealing with the problem children assigned to her as attendants.
Overcome adversity to be able to read books in peace!
A biblio-fantasy written for book lovers and bookworms! The second part begins!

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.

“25…that’s too old to become an idol.” Do Seohan, who got eliminated from the successful idol survival audition program ‘Stardust Project’. Giving up his dreams, he is trying to find his way working part-time jobs. When all of a sudden, he wakes up 8 years in the past after an accident. Right before the ‘Stardust Project’ started! As the youngest (but most experienced), can he make it to the final lineup this time?

Sometimes all it takes is one word to change your whole life.
Kunon Gurion was born blinded by the curse known as the “Hero’s Scar.”
Unable to see, or even see the meaning of life, he spent his childhood in apathy.
Then one day, a water emblem appears on his body, and it turns out he is capable of magic.
So what?

Regardless of whether he has magical power or able to use magic, the fact remains that he cannot see.
Kunon was still unable to see the meaning of life.
Though an unexpected comment that was not intended to be such awakened Kunon.

One day, Sanada Shirou, who works for a black company, is transported to another world. Using his "creation magic", an ability he gained when transported, he opens an inn and is supposed to lead a slow life, but this other world is a little strange?! It is a world where women are overwhelmingly dominant, where women do dangerous work and battle, and men are powerless and are protected! The daily life of entertaining (in many ways) the women of this other world begins...!

Web novel: https://kakuyomu.jp/works/1177354055503576578

Yuuri, a 30-year-old housewife who was unilaterally abandoned in marriage, suddenly gets lost in a different world. She, who was introduced to the work of potion harvesting by an S-class adventurer and gradually got used to life in a different world, realized the ridiculous secret of the harvested potion. The potion without the recovery function that she thought was off was actually soy sauce. In addition, dishes made with it have a bonus of correction function! Will Yuuri's dishes change the common sense of the other world?

This world consists of two dimensions joined as one, like a mirror. The first is the world in which the humans live, Assiah. The other is the world of demons, Gehenna. Ordinarily, travel between the two, and indeed any kind of contact between the two, is impossible. However, the demons can pass over into this world by possessing anything that exist within it. Satan may be the king of demons, but there's one thing he doesn't have, and that's a substance in the human world which is powerful enough to contain him! For that purpose he created Rin, his son with a human woman, but will his son agree to his plans? Or will he become something else...like an exorcist?

Plants have evolved. They can now feed on humans and become terrible monsters known as Jinka. Kingo and Kayano do their best to survive in a Tokyo overrun by plants, but when Kayano becomes a Jinka, Kingo will do anything he can to get her back!

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.

The stories of the everyday life of a black mage and a slime that run a magic store together as master and servant.

Vlad is a vampire who lives in the mountains surrounding a certain town in Japan, and during his hundred years of residing there has come to be regarded as a god of the land. As he protects his territory and its residents, he has encounters with humans and youkai alike, and has made it his mission in life to grant as many of their wishes as possible.

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.