From AnimeWaves:
Touko's life seemed so ordinary, until she got that call... At the scene of the accident, by the puddle of blood, a young maid appeared... could no one else see her? And then, around the corner, a cry for help from a silver-haired boy... The veils are being lifted and the truth is being revealed!

From Japanzai:

In the edges of this world, demons known as "Pagans" lurk. Pagans are born when the souls of the recently deceased fall off the path to reincarnation. The reincarnation ceremony must be performed under moonlight, and so cannot be performed inside a city like Faith-Dehli, overly shrouded by both constant mist and thick smoke.

The Twanbach Funeral Service Company specializes in hunting these Pagans, especially those that attack while Twanbach delivers recently deceased bodies to the reincarnation ceremony—because there's nothing Pagans desire more than freshly dead human bodies with the souls still slightly attached.

Reginald, a 100+-year-old vampire who looks like he's 20, gets scouted by the Twanbach Company owner's mysterious twin daughters, Vanessa and Veroinica Twanbach. But first, they'll hunt Reginald a little, to see how far off the path he's fallen...

Yuuya, the son of a bar owner, spends his days lazing around and juggling his nightly part-time jobs, one of which is cross-dressing as barmaid Yuria on behalf of his mother. One night, a bunch of fishermen come to the bar. Among them is Ken, an awkward youngster who falls for Yuria at first sight. They continue to meet, but what will happen if the sincere Ken finds out about Yuria's secret..?

From MangaHelpers:
One day, Son happened across a woman, named Shue, that he had loved as an older sister when they were young. It looked like it was the same woman, with the same scars, but Son had thought she was dead. In fact, she was a reanimated corpse, resurrected by a young girl named Fuu to work as her minion. Son becomes Fuu's follower, determined to find a way to return Shue's soul to her body so that she might live again. However, Son doesn't know what he's gotten into with Fuu, though, as she ends up in conflict with many other practitioners of her arts, using Shue's reanimated corpse to do things that Son would rather have never seen.

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]

1-2. House
3. Kagami yo Kagami (Mirror Mirror)
4. Kowai Yume (Nightmare)
5. Fusuma (Half-Open Door)

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?

A collection of six of Yotsuhara Furiko's short stories depicting the love between various girls.

The title story is set in a university, with Yuriko, a girl of the jou-sama type, being followed around by her puppy-like female friend Koroku. While eating lunch one day, Yuriko overhears some malicious gossip and her ensuing bad temper leads her to take Koroku to a hotel, where she tells her to do whatever she likes...

1. Laika, Pavlov, Pochihachikou
2. Koi o Egaku Hito (One Who Depicts Love)
3. Kuchisaku Onna to Teppeki no Shojo (Lip-service Girl and Iron-Walled Maiden)
4. Crow Nureba ni Hikarimono (That Which Shines on the Soaked Crow Feathers)
5. Koibumi Miman (Insufficient Love-letter)
6. Chopsticks

From Ikemen Scans:

After his parents go overseas for a few months to work, Kouta, a college student, gets to live in the family house again with his brother Tetsurou, who came back from Tokyo to keep him company. Kouta hasn’t seen his big brother for six years, and doesn’t really get along with him. The situation soon gets awkward when Kouta realizes he doesn’t know anything about his brother... And it gets worse when he becomes aware that the antipathy he felt towards him, might be more ambiguous than he previously thought...

N/A

Collection of the author's best works:

1. Dead End

2. Odamari! (Shut Up!)

3. The Tenth Ten Commandments: About a girl who bonds with her brother's fiancée.

Hika Souma, called Picasso by friends, is 17 and still without a girlfriend after being dumped 13 times. One day, a pretty girl who later introduces herself as Sujata drags him out from a moving train, and with her unwanted assistance, his childhood trauma toward demons (oni) takes the form of a real demon summoned out from his body.

N/A

From Chibi Manga:

Ritsuka and Kaze-kun are currently lovey dovey, but Aizawa-sensei who is extremely beautiful and has the perfect body just started working. Is Kaze-kun also excited over sensei’s enormous breasts? With the appearance of a rival, Ritsuka is in a bind!
I want to be my prettiest when I am in senpai’s field of vision…
Hayashi, Ritsuka’s friend is the main character in the extra story. This is an extremely happy compilation volume to the Koigokoro series!!

From Bakeneko Scanlations: Tanaka Hajime and Harada were leaders of the yakuza group called Yanase. They were wiped out in the conflict between the Yanase group and the Kawa-guchi. The Kawaguchi group thinks that they killed Tanaka Hajime and buried him. Tanaka Hajime was saved by Harada, though he has lost all his memory. Knowing nothing, as Harada asks him if its a lie, Hajime states why would he. Then is when Harada tells Hajime that they are lovers. Is this true?

A collection of bizarre, twisted one-shots with horror, supernatural and psychological themes.

*Included in the re-released edition of Tetsunagi Oni

Compilation of short stories:

♥ KOI-MOYOU ~Sururi~ (Speedy)
Kanami agreed to date Hoshitani on impulse, but over time as she gets to know Hoshitani better, she learns that he slept with his ex-girlfriend, Sae, which makes her feel insecure. This is doubled when Sae's boyfriend, Takatou, kisses Kanami...

♥ KOI-MOYOU ~Tokubetsu~ (Special)
The popular teacher of the school, Sagara, finds a student, Nanami, looking for something in the grass. As he watches her struggle to find a lost object, he finds himself falling in love with her.

♥ KOI-MOYOU ~Kokoro no Akira~ (Whereabouts of the heart)
High school doctor Mai (24) has a "white robe obsession" as her first love was a doctor who treated her when she was 5 years old. She's currently dating a doctor, Konno, who she is deeply in love with even though she knows he's cheating on her. One day she finds someone who looks exactly like her first love.

♥ KOI-MOYOU ~Healing Love~
I was in love, and I was hurt to the extent that I would no longer fall in love... The guy I met was broken-hearted, too.
A friendship and love that started with a shared passion for books.

♥ KOI-MOYOU ~Himitsu no Koigokoro~

♥ KEINAIHIKARI

I received a help message from Benishiro, when I arrived I found him...Notes: Names will differ from original

Includes 4 works that were published over span of 10 years:

1. 1 Gatsu no Merry-Go-Round
A high school girl has a crush on a boy two years younger, but she has always insisted she could never date a younger guy.

2. 3 Gatsu no Dai 2 Button
A girl realises that she likes her childhood friend whom she's always joked around with but never thought she thought of that way.

3-5. Onna no Ko wa Genki!!
About three fifth-grade girls (Chisa, Nanami, Yuula) who are best friends.

6. Basket Girl!!
About a girl who practices hard so she can be a starter for her basketball team's last match of the year.

From: http://kanata.dreamwidth.org/1308413.html

From September Scanlations:

Misono Kazuki is a college student pursuing a dream of becoming a famous novelist but unfortunately, for someone trying to pen a supernatural YA novel, he's got next to no experience with close encounters of the spiritual kind. To remedy this, at the suggestion of a friend, he heads to a supposedly haunted shrine late one moonlit evening, and while he doesn't find any ghosts, he does find something much more interesting.