In a war-torn country where men and monsters fight one another, a young boy has survived a brutal attack. As he’s grown older, he spots a beautiful young woman who might be a gypsy – he’s not sure. What she really seems to be is one of the monsters – a woman who can control spiders and through them control others, and their two paths are about to become intertwined amongst the larger story…

In the Mimi (w)o Sumaseba series:

V.1 - Mimi (w)o Sumaseba
Shizuku Tsukishima loves books. One day, she notices that the name Seiji Amasawa appears on the checkout cards of nearly every book she's borrowed! Before she realizes it, her heart is pounding for a boy she's never met... and that's when a mysterious black cat and Shizuku's sense of wonder guide her to an unusual shop--and introduce her to someone she's been curious to meet! Amazing things can happen...when you listen to your heart.

- ShoujoMagic

V.2 - Shiawase na Jikan
Two years into the future, and Shizuku is now preparing for her entrance exams. The second story, "Kikyou no Saku Koko" (The Blooming of the Balloon Flowers), is an unrelated original story. Tsuge Takayuki is a normal college boy, who, one day, sees a girl admiring the flowers in his front yard, and was reminded of a girl who stood by the flowers one year ago, crying in the rain. He falls in love with her, but will her injured heart accept his feelings?

Yukiteru "Yuki" Amano is a loner who never really interacts with people and prefers writing a diary on his cell phone with his imaginary friends Deus Ex Machina, the God of Time and Space, and Muru Muru, Deus's servant.
However, Yuki soon learns that Deus is real when he makes Yuki participate in a battle royal with eleven other people. Within this "Diary Game," the contestants are given special diaries that can predict the future, with each diary having unique features that gives them both advantages and disadvantages.
The rules of the game are simple: the contestants have 90 days to find and kill all the other contestants, and the last one standing will become the new God of Time and Space

This story is a love story weaved by a cursed girl, a cursed straw doll, and a mathematics teacher. A slightly sorrowful, warm love story that started in the season of spring.

From Viz:

Are the woes of the present meant to be endured for the promise of a better future or to atone for past wrongs? In a captivating epic of love, fate, and faith, seven young people must struggle with this spiritual puzzle as their alien past lives threaten the future.

In a forest, there lived several demons, and one ugly monster named Kavo. He lived his days in loneliness until one day he saw a middle-aged man being assaulted by three other men. Kavo tears down the attackers, saving the man, Liam.

Liam is the first human to not scream and run away at the sight of Kavo -- in fact, Liam seems quite eager to repay Kavo for his kindness...via kisses and sex! Although shocked by his easy-going, smooth personality, Kavo is unable to leave the defenseless Liam alone and decides to be his escort through the dangerous forest. This is the story of an ugly monster and his human companion that is a total flirtatious beast!

A highschool girl stands at the edge of a building, about to take her own life. She then witnesses a brutal stabbing down below by a hooded man. She is instilled with fear at the mysterious man's cold bloodedness, cowering as he suddenly appears on the roof.

From MangaHelpers:
Yuto works for a magazine company known as "Kadokawa". His current project revolves around a mysterious phenomenon occurring inside the city. Someone or something has been placing stickers of a sumo wrestler's face all around the city in various places. No one knows who is placing the stickers or what their objective may be, but these stickers have been showing up in places for a while now.
Yuto now needs the help of an appraiser to solve this mystery. Searching through the web, he finds an appraiser known as the "Appraiser Q". Her name is Rinda Riko, and she has the ability to appraise anything (or anyone) and solve any mystery thrown her way.

Six years ago, Kasumi Shirou was the sole survivor of a plane crash. Though he lost normal vision in his right eye as a result, he gained the power to see into the past. Now a high school student, Shirou is bent on using his abilities to track down the man who murdered his mother.

From MangaHelpers: The Black Museum holds criminal memorabilia from the many cases that have been investigated by Scotland Yard. In this fictional re-imagining of the popular legend, a visitor comes to see a piece of particular interest, the leg of Spring-Heeled Jack. When the curator guides him to the piece, he begins to tell his story of the case of Spring-Heeled Jack, which began in the late 1830s. The earlier adventures of Spring-Heeled Jack involved an eccentric nobleman named Walter, who used his specially made suit to harass women. After an encounter with a very strong-willed woman named Margaret, Walter hung up his Spring-Heeled suit for good. Three years later, Spring-Heeled Jack returns, this time with a penchant for murder. Detective James Rockenfield first suspects Walter, but soon it begins to seem that someone else has taken up the mantle... [tethysdust]

From Dark Horse:

In a strange future where gifted, "hybrid" humans police the planet, Mina is a likeable tomboy with growing psychic powers. When a young boy falls into a coma after gazing into her eyes, it's clear that there's more to Mina than her pretty looks. This young boy, Inchang, grows up to be quite a daredevil, and his awkward, secret love for Mina fuels his protective fire when mysterious men arrive, bringing the violence of the "hybrid" world with them!

From Aerandria Scans:

Suzuhara Mugi is a fifteen-year-old on a mission. She is determined to somehow get onto the campus of Shoukei High School, one of those super super elite high schools. This school is huge and private and has tight security. Mugi is searching for her missing sister--her only remaining family--and she has been led to believe that someone or something on the campus of that school will help her in her search.

Unfortunately, that strict school security is preventing her from getting onto the school grounds. However, her luck changes when she literally runs into Midou-kun, the son of an insanely rich mega-corporation president, and elite person at the school.

Midou is not impressed with Mugi’s sob story about needing to get into the school. He is a very smug and arrogant rich guy. But he can be reasonable, and he eventually strikes up a deal with Mugi--he will get her onto the school grounds in exchange for some labor on her part. She must come to his house and work as a maid! Yeah, this is one of those servant girl stories, but there are a few interesting twists, namely the unexpected way Midou gets Mugi into the school.

Includes oneshot Baby Love in volume 1
Includes oneshot My Fiendly Robot in volume 5

In 19th Century England, during the Victorian Era, there is the Kingdom of Tarnina Ulaniborg. The Kingdom has a Royal Academy where Royalty and Commoners can study Astronomical Research in hopes of becoming a Royal Astronomer. Astel Paschalis attends the Royal Academy as a scholarship student with a certain hidden motive.

From Aerandria Scans:

Who am I? I'm Gi-ryum, a tall, handsome bachelor, and the coolest guy in the country who even makes O△ sama (Reference to "Yon-sama": Bae, Yon-Jun from Winter Sonata) cry at my beauty. One day, I received classified info of the princess enrolling in a regular high school. Huhuhu. Can I snag the princess with my irresistible beauty?! I will be the king's new son-in-law!

"What is the boundary between game and reality?"

The world is in danger. Strange juggernauts called "Angels" have started to appear all around the planet, presenting riddles called "Paradoxes" to whoever happens to be in the near vicinity. Answer right and your land will receive God's blessing. However, if you fail to solve the paradox be prepared to receive divine punishment...

Once again, the police are baffled by the serial killings of several young women. Kudou, a detective, is referred to a young girl by a friend. But this girl isn't what she seems - Kudou saw her at the crime scene. Apparently she's a vampire!!

The short stories of Tomoko Yamashita.
First girl: There was a girl in the middle of the gruesome incidents. ‘I thought that I was invincible.’
Second girl: A recollection of ‘a girl’ who didn’t love an excellent boy, ‘me’.
Third girl: The future where you are cursed when you are born. The only girl who wasn’t cursed is nervous about her undecided future. ‘She is pitiful for not being cursed!’.

Hiro's brother Atsuya is dating Hiro's childhood friend and secret crush Hikari. Hiro's affection for Hikari will lead him to commit an un-punishable crime against his older brother. At least, he thinks it is un-punishable, until he is kidnapped and imprisoned by a group of people wearing animal masks. The judging is about to start! Basicly same principles of "gore Game of concealed murderer" as in Doubt.

With the genius-level reasoning ability he inherited from his grandfather Kousuke Kindaichi, Hajime Kindaichi has solved a great number of very difficult cases. But he is just a regular high-school student. Though he wants to get closer to his childhood friend Miyuki, he can't manage to make a move on her because no matter where they go, a terrible crime always occurs! Kindaichi hardens his resolve and invites her on a one-night mini-vacation! "This time it'll work for sure!" he says to himself. As goes without saying, this manga is a comedy spin-off of the popular work Kindaichi Case Files!