From ADV:
America in the Roaring 20s. On the surface, it's a positive, peaceful time after the violence of the Great War. But lurking in the shadows is a dark element ready to snatch that peace away. Sister Rosette Christopher, an exorcist working as a part of the Magdala Order, has a duty to fight the demons which appear and cause destruction.
But along with her companion Chrno, she usually ends up causing more destruction than the demons themselves! On one particular mission, they meet a young girl with a beautiful voice named Azmaria, who is being targeted by her own stepfather. As Rosette and Chrno work to save her, more is revealed about the relationship between them. There is more to these two than meets the eye.

Mizuhashi Nao is a 16 year old, who is shy and friendless. He passes his class breaks in the toilet playing games where he won't be bothered. One day an upperclassman appears peaking from above and with a huge nosebleed that covers him with blood. Her name is Serika. Wait, a girl?! What is a girl doing in the boys restroom? And why did she just ask him out on a date? Nao's world is about to be turned upside down.

A terrible creature has been plaguing the community: a man with a fishbowl for a head. When he attacks someone, the goldfish leaps out of his bowl and drinks their blood. The victim is irreversibly transformed into a goldfish! This terrible crime has happened to high-schooler Kousuke's little sister. With no other option, he takes care of his goldfish-sister as best he can.

One day, he comes across a strange girl named Ringo, who wears a school swimsuit, carries an umbrella, and keeps a gun hanging around her neck. Ringo is an apprentice blood diver, and the gun is her way of shooting herself into the wounds of the fishbowl man's victims. If she can get to them in time, she can prevent them from turning into goldfish. Ringo's mentor, Ichigo, says that she's heard of a way to turn people back from goldfish into humans. Kousuke is determined to help Ringo find a way to help his sister and the loved ones of his friends at school who have met the same fishy fate! [tethysdust]

Note: The magazine this manga was serialised in was cancelled, but the series received a continuation in Comic Earth Star.

Karin is a cute little girl who also happens to be a vampire... with a twist. Once a month, she experiences intense bleeding from her nose-we're talking gushers! In other words, she's a vamp with blood to spare, so rather than stealing blood from humans she actually gives her blood to them. If done right, this can be an extremely positive experience that benefits the "victim" as much as the vampire. The problem is that Karin never seems to do things right!

Tomoki, a young man with a thing for ecchi stuff, is used to living alone, with his dad traveling all the time. However, he is not prepared for the sudden arrival of his 9-year-old twin sisters, whom he never knew even existed! Toujou Minaho, the big-breasted girl next door, is ready to help out, but these cute little girls are quite a handful.... From Baka-Updates: Kamishiro Tomoki is an Otaku who is studying for college. One day, he received an outrageous "package" from his father: 9 year old blond girls who are his dad's illegitimate children from one of his business trips...... The twins, Selly and Riru are completely spoiled and drives Tomoki crazy. Not only that, the sisters have a "secret" plan to kick out Tomoki and claim the house just for themselves. Will Tomoki manage to make peace with the girls? Read and find out!

From MangaHelpers: Shintaro and his school of salmon have been living in a small lake for generations. Tired of being muscled out of food by the bigger fish, they decide to make a bold move and head for the “ocean” that they’ve heard about in stories where it is vastly large and food is beyond plentiful. As Shintaro leads his school of salmon out into the sea, they soon realize how protected they were in the lake and realize how dangerous it is.

A self-proclaimed angel decides to intervene with a boy's love life, starting with a timer on a boy's arm, which will count down every time the boy's heart beats from interacting with his crush starting from 10. At 0, the boy will confess everything he is thinking at that moment. But it only starts there! The 'angel' has powers based on the number 10, and grand the boy the ability to stop time, make someone fall in love with him, learn who others like, and more. With comedy, romance, and drama, this is not a typical shounen series and should not be passed up.

Sakurakouji Sakura is a girl who appears modest and graceful but in reality is skilled in martial arts. After witnessing a boy burning people with his blue flame, she is startled to see that the same boy is a transfer student, Oogami Rei. Oogami is a Code Breaker, one who "does not exist". He is a seemingly cold-blooded killer who follows the principle of "an eye for an eye", to "use evil against evil". Convinced that killing is not right, Sakurakouji sets out to stop him and penetrate his icy heart.

Oneshot about a unique magical girl.

Cynthia comes from a family of assassins. She acts as a part-time student who's bald (she only appears that way), and she continuously receives orders from the organization to assassinate people. The story opens with her and two friends going shopping for hair growth solution, when a new mission comes up. Her master, who taught her everything she knew three years back, was hired as the target's bodyguard. The two must fight, but what will the outcome be?

Honey Kisaragi is a normal catholic schoolgirl. That is, until her father was murdered by the Panther Claws who were seeking the Airbourne Elemental Fixation Device. She then finds out that she is actually an android created by him with the Airbourne Elemental Fixation Device within her. She is now trying to live a life as a normal schoolgirl and seeking revenge against Panther Claw.

That's right, don't worry--please put your minds at ease. We are this suburb's own detective agency. No matter how small the matter, our company president will personally direct every operation. You won't have to worry about the clean-up either. We'll take care of it ourselves, because... we are the Crossbone's Detectives, and that's just how we do things.

Also includes "Scramble Fish" oneshot.

From Selene Scans:
Ogata Natsuki is the best player on the Kakuchi Junior High Basketball Team. Which is not saying much because they couldn't even get through the 3rd round of the Prefectural Tournament from freshman year until the end of Junior High. For High School, his friends convince him to try out for the Number One High School Basketball team, Fujiwara Academy. So he goes to live with his aunt who runs a hot springs resort to go and try out for the best. Fujiwara Academy.

The thing is... he's small. So people look down on him and he has trouble convincing people he's any good. Through one thing or the other, he ends up with Tachibana Mitsuki watching her school, St Mariannu High go up against Fujiwara Academy in a practice game. But the thing is, St Mariannu is very weak. Weaker than even his former school. Fujiwara is just toying with them and now they don't even want to finish the game. What will happen now? Will Natsuki ever be able to achieve his dreams of being High School Basketball's Number 1? And will it be with Fujiwara?

Yuuki Ashikaga is a high-school freshman at Sakakino Academy. While working as a student librarian, he grows enamored of Kotonoha Katsura, a girl who frequents the library. Unfortunately, Kotonoha is already dating Makoto Itou, another schoolmate.

The situation is further complicated when Chie, Yuuki's older sister introduces him to Roka Kitsuregawa, her kouhai in the basketball club. Roka becomes interested in Yuuki, who only has eyes for Kotonoha. In order to make him jealous, Roka lies and claims she already has a boyfriend, her former classmate Makoto Itou. Unfortunately for all of them, Roka's lie sets off a chain of events no one could have predicted...

Note: Cross Days takes place in the middle of the original School Days storyline and provides an alternate take on how things might have turned out.

In the year 2050 AD, Humans live in a world filled with science and electronics, but the "Demon Capital" Shanghai has never been rid of demons. Fortunately, the supernatural Demon Taoists Corporation is here to ensure that neither vampires, demigods, or even trans-cultural literary icons trouble the citizens...at least, for too long.

4-koma Based on a Novel - Date A Live.

A boy and a girl are forced to join hands for all eternity!?
In a land ravaged by an epidemic known as "Troy", the only people with healing arts capable of stopping the seizures caused by the disease are the Sisters. Although they have a high resistance to the disease, they are searching for a person who is truly immune, so that they can find a cure. The main character is Sister Elraine, one of the Sisters who becomes infected with Troy. But, when she touches Kiri, a seemingly ordinary boy, her seizures stop. Could he be the one!?

In volume 1 is included the oneshot Island:

A story that takes place on the day Aira turned 14, and learned the devastating truth about the island she lives on, which is completely surrounded by a huge wall...

From: Easy Going Scans

General Tokugawa was given 13 sacred swords to bring peace to Japan. However just when Tokugawa started a new dynasty, he was assassinated by his 12 commanders, aka masters of the 12 sacred swords. The last one, Crimson Firebird, was given to Dohran, Tokugawa's naive son . Many years have passed and now, under the cover of a travelling performer, Dohran is seeking revenge and also to bring back the smile in the faces of people.

Haruyoshi, who has always been stuck as a benchwarmer, plans to start fresh at his new school. Luckily, Haruyoshi runs, literally, into the basketball club manager, Hadzuki, who sees potential in him. However, things won't be a smooth sailing from there.

Japan in the future has a massive over-population problem. Scientists have traced the root of this problem to one particular individual, Junta Monamari. According to their records, Junta was a "Mega-Playboy" who had sired children with over a hundred women. Each one of his sons had inherited the Mega-Playboy gene too, so the problem grew exponentially from thereon. Enter Karin Aoi, a "DNA Operator". Karin is sent back to the past with a mission: to alter Junta's DNA and prevent him from ever becoming the Mega-Playboy, thereby eliminating the world's overpopulation problem. Junta's DNA can only be altered by shooting him with a special bullet called DCM which contains the chemical for suppressing the Mega-Playboy DNA. In return, Karin gets a vast sum of money... enough to make all her dreams come true. Will Junta become the playboy he is destined to be, or will his better self prevail? But Karin is falling for the real Junta too... and what of the sweet and kindly Ami who has secretly loved Junta all her life? What will happen to future Japan?