From MangaHelpers:

"The Sixth Dimension Experiment." This experiment, in attempting to open one of the eleven dimensions in our reality, the sixth dimension (Secht), resulted in a catastrophic explosion that killed 110 million people and left 12 countries in ruins. The originator of this experiment, Himeka Yuki, bearing the total responsibility for the failure of this experiment, has been banished from reality for eternity. In response to this event, the world leaders in sciences formed a monitoring agency known as "Zeien" to keep control of all scientists and technology in order to prevent another Sixth Dimension Experiment.

10 years have passed since the incident. Takaomi Yuki, the younger brother of Himeka, notices a change in the "Time Machine Destination" that his sister has given him before her banishment. Suddenly, the device summons a lively girl armored with metals he has never seen. "Takaomi-san! To save Earth, pull out your lance and ride me!" To uncover the truth, the two will begin an adventure that crosses time and space. [DrCoke]

From Animeraider:
When 16 year-old Haruna runs away from an arranged marriage, her parents force her younger twin sister Wakaba into the marriage instead. But while Haruna ran off with a boyfriend, Wakaba has never even been kissed. How will a high school girl survive going from nothing to full on marriage with no steps in between?

This is oneshot of Tokyo Ghoul.

The manga consists of nine entirely separate short stories set in World War II, each reimagining a famous fairy tale with the European theater of World War II as a backdrop, often with poignant results.

(Source: Hokuto no Gun)

From Fairgame:
Haruka is an unlucky highschooler but one day she grab the happiness. She is going to get married with her fated husband, Masayoshi. He had been married once before but he is serious and kind, and supposed to make happy family life but then...

Dialogue-less oneshot.

An anthology of short stories from 1974-1980:
- Chuck Check Chicken
- Tokyoo Chang Pong
- Shincho Senki
- Good Weather (part 1)
- Good Weather (part 2)
- Ai no Kaikaku 2 Chome 3
- Virgin Shadow
- Katsu Kare
- So What
- Ame Lingo (part 1)
- Ame Lingo (part 2)
- Boogie Woogie Waltz (part 1)

Makoto Hayakawa, who is called Shin, is a third-year high-school student about to take entrance exams. He hasn't decided what to take for college yet. Compared to the other kids, Shin is a bit of an oddball. The neighborhood he lives in, M City of Tokyo, has three massive structures called "Reactors".
One day, a mysterious girl crosses his path, and in front of those reactors their fateful first meeting takes place...

Collection of short stories from 1975-1978:
- Kazoku
- Suka to Sukkiri
- Shusei Sanchi no Yuki Chan
- .....Ga Chyun
- Highway Star
- Tenmoo..... Nishite Morasazu
- Tsuya no Atosaki
- Seisoo
- Ashita no Yakusoku
- Sayonara no Omiyage

Reiko finds a starving mysterious animal that looks like a cat with wings. To the girl's surprise this cute animal names itself a space salesman that would sell advanced technology to humans for just a bit of hahise, which is abundant on Earth. But what is hahise? Would you pay it for a machine that can copy anything?

Unfinished space science-fiction manga by Otomo Katsuhiro.

This one-shot was a short extra in a guide book for a Sirens game. A mysterious siren out at sea drives fishermen to madness.

In a world where demons have haunted humans since ancient times, Rose and Marie are on journey searching for their missing brother while at the same time following in his footsteps as a hunter

In the year 2022, Kazamidori Aki works at the Time Travel Research Facility with her assistant Miyama. They use a technology called Aston that has scanned every detail of the city for the past twenty years and recreates the past exactly as it appeared into a client’s mind. This process called the In-Brain time travel allows the user to visit his past. But because it is only in their mind, they are unable to change anything in the present so no time paradoxes occur. Aki uses her services to help those who made mistakes in their past and help them change their ways. There is something odd about Aki’s past that makes her very unique and she has to deal with the skeletons in her closet.

Based off of Rerulili's song of the same name, along with the sequel "Noushou Sakuretsu Girl (Spinal Fluid Explosion Girl)", Welcome to the Human Zoo of Hell — where failures of society come to be ridiculed.

From MangaHelpers: At the scene of a terrible murder, only Todo is able to find the surviving little girl in the closet--his niece Tsubasa. Four years later, Todo and his father are caring for Tsubasa, who no longer speaks, and Todo continues to work as a police detective. He's assigned to a new partner, a young woman with a promising future, Saeki. As Todo and Saeki team up to solve murder cases together, they will also both have to confront their own painful pasts. [tethysdust]

People differentiate between "normal people" and "strange people." But who decides what can be considered the norm? This story emerged from our world. This story will send your common sense flying.

This new book by Miyazaki comes packed full of sensitivity and wonders. Eight short stories that will rise a rainbow in the heart of people who had lived a life of loneliness.

From Fairgame: Story is based on three childhood friends. A girl who lost her memory, Miyuki. A girl who is a currently a super idol, Fumika. And Shuuichi, a childhood friend of Miyuki and Fumika, who likes to take photographs. Two years ago, Miyuki lost her memory by an accident and she kept a distance from people but somehow she begins to open her heart to Shuuichi. Their relationship seems like more than just friends but less than lovers, but in five years, Fumika came back from Tokyo to see Shuuuichi. Their feelings overlap and their childhood times slowly begin to move.

The story focuses around Makoto, a student who's talent is making stuffed toys. He starts researching the mysterious disease going around called 'Sudden death' after finding out that his latest creation looks like the mysterious stuffed rabbit rumoured to be causing it.

In Japanese mythology an inugami is a type of shikigami, similar to a familiar spirit, resembling, and usually originating from, a dog, and most commonly carrying out vengeance or acting as guardians on behalf of the inugami-mochi, or "inugami owner". Inugami are extremely powerful and capable of existing independently, as well as turning on their "owners" and even possessing humans.