From MangaHelpers:
The world is in a war against an alien race called "Mimics," who have taken over most of the world with a mission to eliminate the human race. Keiji Kiriya is a new recruit in the United Defense Force, which is battling against these "Mimics." On his first day of deployment, Keiji and his unit encounter "Mimics" and are all killed... Or was it all a dream? For some inexplicable reason, after every time he dies, he is resurrected and returned back to the day before the battle. Why does this happen to Keiji and how can he escape from this never ending cycle?

Note: Nominated for the Eisner award for the "Best U.S. Edition of International Material - Asia" in 2015.

Tsukasa is a magazine writer who has a sometimes boyfriend Atsushi, a gay porn star. They get along just fine, until Yui shows up, a yakuza from Tsukasa's past! Mix in a haunted house, ghost mystery, yakuza action, and plenty of adorable kitties and you have the latest new story from Miyamoto Kano!

From Half-Baked Scanlations:

Ririko, a stylish Charisma Gal from Shibuya, finds herself playing amateur detective after an unexpected turn of events. She is keen to solve cases to prove herself worthy of elite police detective Nii, a man she adores and regards as her fiancé, but her enthusiasm leads her into a whole lot of trouble.

From Viz:
The business of Death is never done. Asato Tsuzuki works as a Shinigami, or "Guardian of Death," in the Ministry of Hades. It's his duty to make sure that the souls of the dead reach the afterlife, but contrary ghosts and humanity's evils keep getting in the way of a job well done. With all these problem assignments, will he ever get a bonus... or will he be stuck paying back damages for all eternity?

Kyoya Ida is a hard-nosed detective from the Shinjuku Police precinct. He is known in the force as an unreasonable type who would use lethal force to solve cases, making him unpopular with the enlisted and high-ranking officers in the National Police Agency.

Despite this fact, there are some in the force that admire Ida for his bravery and cleverness in using lethal force to solve criminal cases whenever legal means are met in a dead end.

Imagine living in a town where supernatural beings stalk the night for their next prey. Toukei Ibun takes place 29 years after Tokyo was established as the capital of modern Japan. Manzou is the owner of an inn in the town of Asakusa. His friend Hirakawa is a journalist who is investigating the bizarre crimes that keep occurring all over the city in the dead of night.

In a world where dangerous aberrations lurk outside the walls of the last human refuge, Piras, the spoiled and immature son of a war hero, must recover his identity after being classified as a terrorist and hunted down by a corrupt empire. Awaken is an ongoing webcomic.

The story behind the day of Full Moon three centuries ago and the day of Full Moon present day. The story is revealed around the gods and people involved in the incident!

Miyoshi Yoshimune (nickname: Yoshi-Yoshi) just moved to Ikebukuro because of his parents’ work. While exploring his new town with his classmates, Mikado, Anri, and Kida, he hears rumors about “The Headless Rider” and “Color Gangs.” While chasing after these rumors, he gets dragged into a conspiracy involving the whole of Ikebukuro…

Adapted from the PSP game of the same name focusing on a new original character.

Meet Kazahaya and Rikuo. By day, they are two ordinary pharmacists at the Green Drug pharmacy; by night, their boss has them filling 'special prescriptions' for clients with ailments that can't be cured using ordinary elixirs.

A standalone one-shot published by Araki, accompanying the multi-media campaign for his window illustrations on the new collection of the fashion brand Gucci.

The story is about Jolyne Kujo, who goes on a fantastic adventure when she tries to unravel the mystery behind a vintage piece she inherited from her mother’s Gucci collection.

The story is set in a middle school in Shishibone city. Tomohiro Miyajima, the main character of the story, and his group of friends are busy studying for an exam. One day, in search for a thrilling mystery as well as easy money, they take several donation boxes and fabricate a curse to scare everyone: “Ohone-sama’s curse”. After scrawling 骨 (bone) all over the chalkboards and spreading rumors of the curse, the donation boxes are quickly filled and the curse becomes a major legend of the school. Of course, only Tomohiro and his friends knew the curse was fake. It wasn’t possible for anything to happen.

That is, until they receive a donation of 50,000 yen and a letter to go with it, reading: “Please curse Tanashi Miyoko”

Immediately after that letter, bullying and crimes in the school escalated, strange incidents occur, and Tomohiro and his friends are left with a much bigger mystery than they wanted to have, that they are forced to investigate by themselves. What happened shouldn’t have happened. Those who are alive should not be alive, those who know what they know shouldn’t have been able to know, and familiar faces are hardly what they seem, but why? And how?

—Note: The world that this story is set in is the world shown at the end of Higurashi Kai, where Frederica Bernkastel meets Tanashi Miyoko and Miyoko’s parents do not die.

[From FCTranslations]: When Momoe visited her old school, she remembered an event occurred there when she was still a student. Twenty years ago, rumors said there's one man who came to the girls' dorm by night, search for his very own targets, and steal their soul. To find out the truth, Momoe, who teamed up with three other friends, is determined to find this intruder. One rainy night, she found a naked young man near the church, and it turned out he has a lot of connections with the one Momoe is searching for......

In Hong Kong, Nishi is a young policeman investigating a case of strange murders, where the victims appear to have died of fatal blood loss. But the investigation is taken over by a mysterious organization, whose members warn Nishi that he had better not keep on trying to uncover the truth. Some time later, as Nishi wanders in the city, he is suddenly attacked by a monster; but a beautiful stranger saves him.

Angelica North has lost her parents in a fire accident. She blames herself for their deaths, and this has driven her to darkness. Sylph Rave is an 'occult writer' who is rumored to see ghosts. These two strange, rumored characters are driven by fate to meet. How will Sylph help Angelica? What other mysterious things will haunt our troubled heroine?

Mr. Sakaki and Ms. Ousaka investigate the case of the serial scribbler!

2011, Seta Souji moves to the countryside to his uncle's house due to his parents working abroad. Not very friendly, he however managed to make a few friends there, and they all decide to solve the mystery behind the sudden cases of serial murders that strikes the area.

Ryu stows away on a space vessel, only to be found by the crew when it's far to late to return to earth. So they stick him in a spare sleep capsule instead. Things take a turn for the unexpected, however, when Ryu wakes up to find himself the sole survivor of the expedition, the spaceship having crash landed on a grossly mutated and wholly unfamiliar Earth. Joining forces with fellow survivors from a different crash, Ryu and his comrades fight to survive on this new and deadly Earth as they search for any humans that might've made it through the mysterious apocalypse.

The legend has it that once upon a time, a pact was sealed between the Shinto priest of the town of Amide and a mermaid. Ever since, abundant fishing has guaranteed the town’s prosperity. This pact has always been honored by the priests of the Yashiro family. However, the legend has attracted both media and property developers, and the acting priest has acceded to their demands. Yosuke, youngest of the Yashiro family, has doubts about the existence of the mermaid, but will soon change his opinion as strange occurrences begin to unfold…

From MangaHelpers:

Technology has now allowed people to be numerically categorized based on their psychological, physical, and emotional traits. People have begun using this technology to standardize what everyone considers a "good way to live." They call this system "PSYCHO-PASS."

Although all people know the standard "good way to live," crime still occurs. Kougami Shinya and his colleagues are part of the governmental agency that apprehends individuals deemed lacking under the PSYCHO-PASS standard. His agency are actually comprised of individuals who were once found to be problematic for society. They are now the dogs of the government.