From Azure:
Nanhi Hong is the second child in the Hong family. She has an older brother, who is the jjang (boss) of his school, and a younger brother, who is a member of the rival school's gang. When Nanhi meets a mysterious student, things begin to get complicated. What will Nanhi do?

Oomura Takeshi is one unlucky fellow. He has has this case of bad luck ever since he was little. One day, while on his normal runs with bad luck, he meets an Angel named Elle, and he finds out that his father wished the curse of bad luck upon him. Takeshi has the oppurtunity to pass on the curse, but accepts it to save a young girl. For his noble act, Elle becomes human and lives with Takeshi to protect him from the curse, which is something Takeshi isn't particularly happy with.

When the orphaned Sera was taken in by the Lady of the Choi household, her dreams of having a family were fulfilled. However, Sera found herself rejected by the Lady's three handsome sons, and it was made very clear to her that she was nothing more than an orphan who would would never become part of their family. At 16, Sera still finds herself bullied by the three brothers, and soon it becomes evident that there is more than just her background that makes the boys reluctant to officially adopt her into the family.

From Solaris:
After spending half a year abroad, Kinosaki Yuichiro is in for a shocking homecoming when he discovers that his inventor/scientist father has given his 3 dogs the appearance and abilities of girls. Now he is in for a ton of grief as he tries to cope with these changes.

The official Infinite Stratos Anthology comics.

From Dazzling Scans:

Tachibana Kaori accidentally spends a night at the luxurious—and expensive—Hotel La Vie en Rose. Without enough money to pay the accommodation fee, receptionist of the hotel Kyuno tells her that she has no choice but to work off her debt. Kyuno is a sadistic penny-pinching mystery and no one of the hotel seems to know of his past. Still, as bossy as he is, Kaori finds herself opening up to him about her own traumatic history… and perhaps, Kyuno might have a gentle side after all.

• Hoshiiro no Okurimono (Star Colored Gift)
I have always believed that this meeting was fate. I thought that your smile, everyone’s laughter, and the happy times were going to continue. We wish upon a shooting star, hoping that we would be together always. Thinking that the wish would come true…

• Antique Wish e Youkoso (Antique Wish)
Nishina has always been in love with Haijima Kaname since the day she saw him cry. One day, she follows him to Antique Wish. What's gonna happen next? Will her wish be granted?

• Sleeping Beauty wa Nemurenai (Suriipingu Biyuutei wa Nemurenai)
Chiharu's sleeping face was so beautiful that Minori kissed him. But because of that, Minoru teaches Chiharu a lesson in…?!

Aisu is a daughter of the Outori financial combine family. She loves Hiro at first sight, who is a friend of her childhood friend Ren, and she enrolls at the same high school that Hiro attends. However, her father forces her to get married, so she explodes in anger...!

Includes short story Kimi no Toriko;
Last year's Valentine's Day, Satome Mako gave chocolates to Nakanishi-kun, who let her borrow his umbrella. Through misunderstandings, Nakanishi holds a small grudge against Mako for being spoiled by all the guys on White Day..

From ADV Manga:

The prestigious Aoi Academy caters to an elite collection of young magic users. But 17-year-old Kazuki Shikimori is a student who passes muster in name alone. He is the youngest in a long line of sorcerers, but the family's long-running talent for the black arts ended with this average student. That doesn't stop the female population of Aoi Academy from vying for his attention, though! His impeccable DNA will start a teenage war of lovesick girls!

Photography is the art to grasp beauty with the one and only tool, a camera. Ooji's dream is to become a photographer that photographs at the front lines of war, to take pictures of historical events taking place in front of his eyes. However, his childhood friend, Sumire, doesn't think that he is capable of becoming one.

In his photography club, Ooji shows his photos to the group, and his upperclassman, Ran, points out that Sumire is a good target to photograph. Ooji manages to get permission to take photos of Sumire, and during his shoot, Sumire notices that Ooji is acting differently than before. Later they find out that one of Ooji's pictures won an award! Sumire congratulates him, but Ooji sees beyond his award. He claims that he learned that he has much more potential than he thinks. Ran, overseeing this, plans to take Ooji to the next level so he can capture true beauty through the lens of a camera!

It's a story about a girl who lost her every memory. One stormy night, a sudden meeting changes her life forever. She starts anew while still trying to set the pieces of the puzzle that was once her life. Soon after, a love that puts everything on the line is born in the girl's heart.

By chance, she starts living with a boyband called RISKY and her adventure of love and discovery begins...

Set three months after the first series.

The story revolves around Takumi Tsuzuki, a boy who lives with his older "sister" Otome, although the two have no blood ties between them. Otome manages a run-down confectionery store called Stray Cats. One day, Otome picks up a mysterious beautiful girl off the streets.

Nanami transfers to St. Marivel (Mary Bell) High School from America as she looks for her childhood friend, Kotaro. In a school where the ratio of male students to female students is 1:20 respectively, Nanami gets involved in a conflict with a male student who is almost twice her size. As Nanami was about to engage in battle, she catches a glimpse of Kotaro and stops, allowing the male student to grab hold of her! How will she get out of this situation?

From Wingtip Cafe:

In Edo (ancient Japan), an oiran (high-class courtesan) joined a robber gang that stole from the rich and gave to the poor. Together, they battled against the enemy who used ‘Eleki’ (electric gadgetry and dolls) as weapons.

Teppei Arima is a second-year high school student who lost both of his parents in a traffic accident on their way home from a family trip. His grandfather, Isshin Arima, happens to wield the puppet strings in Japan’s vast economy and demands that Teppei becomes his successor as the head of the Arima Group. To prepare for his debut into high society, Teppei enrolls in an elite academy for the scions of the rich and powerful.

Mizuho can't believe his ears when Grandpa's will is read out. Grandpa's final wish is for Mizuho to attend the same academy as Mizuho's mother. The catch is it's an all-girls school. With the help of his friend Mariya however, he gets a makeover good enough to fool everyone at the academy.

Inukai Shirou a male high-school student leading his life when suddenly his dog Mashiro turns into a human girl and now he must satisfy her wants or face the consequences.

Hina moves back to her old home town only to find that the high school is run by two opposing factions, and students identify themselves based on the color of their school uniforms: Black for the followers of the ostentatious, violent Nishizaki, and white for the followers of the misanthropic, clean-freak Isshiki. And, as if it wasn't complicated enough, there are the "grays," who wear their own clothing, deciding to be their own people. Hina finds herself stuck between the leaders of the two factions, and it seems to be turning violent.

Also contains a oneshot: 3 Days

[From AT-Translations]:

Based on an ero-game, Prism Palette is Peach-Pit’s (famous for DearS, Zombie Loan, Rozen Maiden and assorted other manga) first publication. It follows the main character, Masaki Shirai, as he spends his days at school, surrounded by beautiful girls.