From Yen Press:

Each year, the Ushiromiya family gathers at the secluded mansion of its patriarch, the elderly Kinzo. It has been six years since Battler joined his cousins at the annual event, but their happy reunion is overshadowed by worsening weather and an eerie premonition from his youngest cousin. When their parents’ conversation turns to the division of the inheritance upon Kinzo’s imminent death, Battler and his cousins reminisce about the stories their parents teased them with as children-tales of the witch, Beatrice, who haunts the island’s forest. But when people start dying unnatural deaths, Battler can’t help but wonder…

Question Arc
1. Umineko When They Cry Episode 1: Legend of the Golden Witch
2. Umineko When They Cry Episode 2: Turn of the Golden Witch
3. Umineko When They Cry Episode 3: Banquet of the Golden Witch
4. Umineko When They Cry Episode 4: Alliance of the Golden Witch

Answer Arc
5. Umineko When They Cry Episode 5: End of the Golden Witch
6. Umineko When They Cry Episode 6: Dawn of the Golden Witch
7. Umineko When They Cry Episode 7: Requiem of the Golden Witch
8. Umineko When They Cry Episode 8: Twilight of the Golden Witch

The side story arcs are:
- Umineko Biyori
- [m]Umineko no Naku Utage ni: Tea Party of the Witches[/m]
- Umineko no Naku Koro ni Episode X
- Umineko no Naku Koro ni Tsubasa
- Ougon Musoukyoku
- Umineko no Naku Koro ni Shi: Forgery of the Purple Logic

Creatures from another dimension have invaded Earth! Earth weapons are useless against these "Neighbors", but some scientists have created new weapons based on the enemy's technology. Using these weapons, humans struggle to defend themselves from the invaders.

The head of the central base has sent the ace soldier, Yuuichi Jin, to help out the failing Base 7, and rescue his son Yuiga Tadashi, who is the leader there. Unfortunately, the problem with Base 7 is, in fact, Yuiga Tadashi. He's a terrible leader who cares for nothing but his own reputation and believes that being the central base leader's son allows him to do whatever he wants. Will Jin be able to fix this terrible situation?

Talented Elite Jin is a oneshot created by ASHIHARA Daisuke. It is the second precursor to the World Trigger manga series, the first of which is Trigger Keeper.

Ryu and his friend Jay find a new companion in Hwa Ja, but find the scrutiny of the outside world harsh and cold. When his family moves away, Jay is left alone.

10 years later, Ryu is notified of Jay's death, and receives one final text message: "Don't ever come back." Despite the warning, Ryu returns for the funeral of his childhood friend, and eventually finds himself back at the house where it all began.

Kouhei transfers from the city to a port town on a small island and ends up becoming fast friends with an outgoing guy named Yuuta. One day, Yuuta overhears someone confessing their love to Kouhei, and through this discovers that his friend already has someone he likes...

From Esthétique: During the period when the Tang Dynasty was at its peak of success, imperial court general, Huangfu Duanhua, was whisked away into a series of bizarre and supernatural events after his friend accidentally stepped into a store owned by a Persian merchant. This then led to many incidents that were kept sealed by the empire for a thousand years… Court disputes, strife in the royal family… As the wheels of the perilous history are set in motion, where will they lead?

Revolves around a student who happens to intrude upon a NEET detective and becomes her assistant.

This story is about a man who steals others' luck by touching them with his bare hands. He takes luck away from those "bad" men who have been doing horrible things and makes their death look like a coincidence. With all this luck, what does he do with it, how does he use it?

Devastated after the death of her only daughter, Eunjo joins a group suicide. Instead of death, she opens her eyes to the days before. Fate is cruel as she must now relive each joyful moment with the pain of knowing what's to come. As she flashes back into the past, Eunjo realizes her future is set in stone... or is it? Can she change this twist of time for the better somehow and save her loved ones?

Michio Yuki has it all: looks, intelligence, a pedigree as the scion of a famous Kabuki family, a promising career at a major bank, legions of female admirers. But underneath the sheen of perfection lurks a secret with the power to shake the world to its foundations.

During a boyhood excursion to one of the southern archipelagos near Okinawa, Yuki barely survived exposure to a poison gas stored at a foreign military facility. The leakage annihilated all of the island’s inhabitants but was promptly covered up by the authorities, leaving Yuki as an unacknowledged witness—one whose sense of right and wrong, however, the potent nerve agent managed to obliterate.

Now, fifteen years later, Yuki is a social climber of Balzacian proportions, infiltrating the worlds of finance and politics by day while brutally murdering children and women by night—perversely using his Kabuki-honed skills as a female impersonator to pass himself off as the women he’s killed. His drive, however, will not be satiated with a promotion here and a rape there. Michio Yuki has a far more ominous objective: obtaining MW, the ultimate weapon that spared his life but robbed him of all conscience.

There are only two men with any hope of stopping him: one, a brilliant public prosecutor who struggles to build a case against the psychopath; the other, a tormented Catholic priest, Iwao Garai, who shares Yuki’ls past—and frequently his bed.

From the manga habit:

A dream filled with red camellia and the passing of a strange mask... The owner of this mask is a boy named Yue who lives in a temple populated with unusual - and not altogether human - residents.

It's winter, and the nearby town, Utsuwa, is holding a seasonal festival. Kurogitsune, Yue's fox spirit friend, decides it's the perfect opportunity for the sheltered young man to experience the sights, sounds, and (most of all!) the food in the outside world. Even though Yue is forbidden from ever leaving the temple, they sneak into town, not realising what they've set into motion.

Note: #10 is an extra volume. The main story ends in the 9th volume.

From XscansX:
What is the purpose of your life? To live is just to die?
Is life a slow death? Do you even have your own purpose? Nao is a sensitive yet self absorbed college student, believing that reality is cruel to him. Ever since he was a child, he was categorized as a "ghost boy" whose existence was so faint that no one cared about him. One day Nao snapped and assaulted a young boy playing in a family restaurant with Tabasco sauce.
While being interrogated by the police, a mysterious beauty appeared and rescued him. Her reason was simple: "Do you want to dominate the world with me?"

Kuuki no Soko is a collection of short stories drawn by the genius mangaka, Tezuka Osamu, between 1968 and 1970, and is known in Japan as a true masterpiece.

Belonging to Tezuka's most mature period, it touches many genres: from pure science fiction to historical fiction to contemporary drama. We find stories of industrial espionage, animal testing, and racial animosity, as well as stories about the more complex dynamics of the human mind.

And the human mind is the leitmotif of the entire volume, namely the duality present in every one of us - mercy, love, and understanding, existing together with cruelty and violence until something upsets the balance and we discover a side hidden even from ourselves... a side we are not always prepared to confront...

Note - Chapters 1 and 13 are also included in Clockwork Apple
1. The Execution Ended at Three
2. Joe's Visitor
3. The Voice of Night
4. The Cliff of Death
5. The Duel at the Grand Mesa
6. Scales Cape
7. Illicit Love
8. The Hole
9. Star for Exiles
10. The Cat's Blood
11. Telephone
12. Chameleon
13. Immaculate Conception
14. Catastrophe in the Dark
15. Robanna
16. Space Capsule

One-shot tribute to Mushishi by Urushibara Yuki.Originally ran in the 50th issue of Good! Afternoon (January 2015 issue).

Most girls are crazy about jewelry, but not Anis Yamamoto. Not since her father gave her a rose choker as a child, claiming it was a protective amulet which would safeguard her from harm; however, if she ever took it off (a feat easier said than done!), she would be afflicted by a “punishment” of some sort. Not like it matters to her though, since the attention it attracts around school from faculty and students alike isn’t something she’s particularly fond of.

But after a certain incident causes the choker to disappear, she realizes that this punishment her father spoke of might have been a bit more than she bargained for!

This is a world where there are three classes- Royals, Nobility, and Commoners. The Commoners are at the mercy of the Royals and the Nobility. There is magic, and an elusive siren...how does it all come together?

In the recesses of mountain... there's a bus stop at outskirts of a village, it's called "Hinamizawa bus stop". Rika, a female high-school student, together with her junior, Mion visit this place. Twisted relationships that are concerned with the dam construction in Hinamizawa, and the stories of the curse of "Oyashiro-sama" that takes root in this area. What waiting for them is a tragedy, or else...?

Note: This manga adapts Hinamizawa Teiryūjo, the unreleased stage play that Ryukishi07 wrote and eventually transformed into the Higurashi no Naku Koro ni game/anime/live-action franchise.

From MangaHelpers:
Hatou Gaku has a very odd friend at school named Marii Yukari. Yukari has purple eyes and a bizarre way of looking at the world: she sees all living things as robots. This has not always worked out well for Yukari, even costing her a best friend when she was younger. However, Yukari insists that the things she says she sees is true, and her vision seems to give her insight into the abilities of others.
Gaku thinks she's just weird, but she soon realizes that Yukari has unexpected talents. It seems she can fix anything, and even the police come to hear her insights. It turns out that Yukari's purple eyes are not unique in the world! However, there is one important distinction among those who see humans as other objects. Do humans appear as unimportant as objects, or do those objects appear as important as human beings?

A quick and wacky oneshot about two people doing affair investigations for their clients.