A gate appears in Tokyo's Ginza district sometime in the 21st century. From the gate pours out monsters, knights from middle-age Europe, and other fantasy-like beings, and they kill many of the citizens of Tokyo. This event is known as the Ginza Incident.

The government sends a small group of soldiers from the Japanese Self-Defense Forces to the alternate world beyond the gate. Led by otaku soldier Yōji, they find that the villages in the world are being attacked by a dragon. An elf girl who is a survivor from the dragon's rampage joins the group in their travels across the dangerous new world.

The only goal in life for Elise, the princess of the Kingdom of Grandia, is to survive. She was married to the Duke Jin Jo, the madman of Landel. I expected to get love, but he did not even pay attention to her.

Then one day, the curse began. "It's going to be really crazy because of the moon," Jin Jo said. "I am also in trouble because of 'it' that happens every morning."
The curse switched my husband's body and mine! Can we break the curse and switch back?

Based on the Linux operating system variant Ubuntu, this "slapstick school comedy," three high school students—the fervent UNIX user and club president Akane Kisaragi, the hardcore gal-game otaku vice-president Masato Midou, and the doujinshi-drawing Mac fan Risa Shiina—are learning how to use Ubuntu in their systems adminstration club.

When a series of animal bodies that rot away after a single night begin appearing in a remote mountain village, Inugami, a detective from Tokyo who specializes in the occult, is called to investigate.

While working the case, he befriends a strange boy who works in the field every day instead of going to school. Shunned by his peers and nicknamed "Dorotabo" after a yokai that lives in the mud, he helps Inugami uncover the truth behind the killings - but supernatural forces are at work, and while Dorotabo is just a nickname, it might not be the only thing about the boy that isn't human.

In order to receive love from her father, Keira tried her hardest to live the life of a perfect, submissive daughter. However one day, Cosette appears claiming to be his real daughter and Kiera is executed under the assumption that she is a fake.

In the last moments of her life, Cosette whispers to Kiera “Truthfully, you were the real one.”

Kiera, recalling those words, returns to the past. Although revenge is important, what does it matter who is fake and who is real? Now that I have been given a life again, I will live it freely for myself! A coming age of romance of a cute female protagonist who has never made friends.

Daily life of Kohana the cat.

A man gets sucked inside a dimensional crack and falls into another world.
The goddess of that world meets the protagonist and awards him divine protection and some items to survive, which includes access to the Internet. After the protagonist sees that the place was way to lawless, he uses his abilities to fix that.

In 1912, a young woman tracks down the elderly Nagakura Shinpachi, determined to hear the true story of the Demon of the Shinsengumi, the Vice Commander Hijikata Toshizou. Hijikata's story begins in 1859, when he is a violent young man honing his sword skills while peddling his family's medicine. Soon, in his quest to find stronger people to fight, Hijikata starts to come into contact with others who will eventually be his comrades in the Shinsengumi. The first one to make an impression on the brash young man is Kondo Isami, who proves to be a better fighter than Hijikata...

A "dragon" appears from a container that fell in front of Dazai Ryunosuke's eyes. The disastrously beautiful "dragon," Rinne Irako, had been condemned to death as a world-destroying calamity, and was being transported to a place of refuge. Rinne Irako was sentenced to death and transported. But as fate would have it, the "dragon" girl had a miraculous encounter with a boy, and her destiny was about to change drastically.

A mysterious girl and a strange ammonite I met at my new school. I want to dream of the Cretaceous Period with my "favorite" girl! The humble and passionate adolescence of me and her, who devote their high school life to excavating dinosaur fossils, begins!

Youth Romcom about a transfer student boy meeting a fossil fanatic girl in his new school who is introducing him to the paleontology club

A world where machine civilization has perished and immortal monsters called "Monotsuki" are rampant. Isana, a girl born in a remote village, meets a mechanical person who lost her memories and looks exactly like her sister, who should have disappeared in the ruins she wandered into. Convinced that "My sister is alive," Isana gives the mechanical person the name "Hime" (princess) and together they set out on a journey to find her sister.

Kay Brennan is a hero, no doubt about that. They're the strongest person in their school in terms of combat strength and magical power. Compared to Kay, Dino Turner - the eternal 2nd place - might as well be nothing, and as such Dino has declared Kay to be his archrival. However, Kay has a secret: she's actually a girl crossdressing as a boy. And Dino is the only one who knows her true nature.

From Yen Press:

Accepted to a high school specializing in the arts, Yuno moves into a nearby apartment complex to make her commute easier. Just a few days into her new routine, she quickly discovers that creativity doesn’t end with the art school bell! Her neighbors — Sae, Hiro, and Miya — are all fellow students, and each has her own hilarious quirks. And eccentricity clearly rules this school; Yuno’s homeroom teach is a cosplay otaku and the principal is just…weird. Will the quiet Yuno be able to handle this creatively kooky cast of characters?

Arata Natsume works at a child guidance center, is in his thirties and single with no plans for marriage. But one day, he receives a request from the child he was in charge of, Takuto, to "meet the criminal who killed his father". That serial killer is Shinagawa Shinju, also known as the "Shinagawa Pierrot".

A love story between a 12-year-old girl and her 18-year-old senior.

Need Correction!!

"How did you know? I hid it well so that no one would find out."

Adrian Caesar von de Paltzgraf, the successor to the Paltzgraf Family. He is hailed as an angel in this world, but only I knew that the serial murders and murder attempts happening in the area which everyone was talking about were all committed by a young, good-looking gentleman.

[Adrian's murderous intent has increased.]
[Convince Adrian to lower his murderous intent. If not, you die.]
[Adrian's murderous intent is at 92%.]

I am the only one who knows. I was the only one who transmigrated into the world of this ridiculous horror game.

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Note:
- Only Ridibooks has all the volumes, due to Volume 1 of the side stories being R19.
- "No Exit Horror" is the English name on the ebook and physical Korean novel cover.

Middle school teacher Nobunaga has always been dreaming of such a gal game-like situation. However, the one who appeared before him was Kichou, a 14-year-old girl who proclaims herself as his wife. Appears to have arrived from the Sengoku era, she mistakes Nobunaga as Nobunaga Oda and urges him to conceive a child with her. Thus begins the age-difference love comedy between a gal game-loving teacher and a Sengoku era expert princess.

‘How long have i been laying down at home…?’ Han Jia, who is turning 32 this year (she’s a freelancer who’s still doesn’t have a full-time job/jobless), suffers because of the pressure given by people around her that keep telling her to get married. Around the same time, Jin Mincheol, her childhood friend who came to Jia’s hometown for holiday, is having the same problem. Then, the two people got married just like that. Now that they have married….. ‘Huh? We match each other more than i thought?’

The strongest female warrior of the west, Seraphina de Lavillant, was defeated by barbarians of the east.
What awaits her are endless days of torture...is what she thought.
Instead, she was offered "marriage to the barbarian king"!?
The start of a fantasy world marriage by former enemies!