Ono Matori is a high-school student who is secretly a successful erotic manga author. He has recently found new inspiration for his work from his neighbors and classmates, the Hikasayama twins, Haruna and Wakana. Both Haruna, the cheerful and active half, and Wakana, the cool and collect one, both fall in love with Matori. He unwittingly agrees to date both of them both for research purposes and personal interest. Their love triangle will help Matori with his erotic manga storyline but how will his life change back in the real world?

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.

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 AnimeWaves]:

Saruno runs a bodyguard service company with his assistant, but they hardly have any jobs. One day, a fateful encounter with a girl called Meruo started a whole series of interesting adventures.

Ibusuki Rokusuke is unlucky enough to have a girl who's downright crazy for him. While trying to escape her twisted idea of love, he sneaks into an inn... which happens to be run by a witch who does not appreciate it when people try to stay without paying first.

...oh, and the crazy girl got there before him. Poor guy...

Prequel to Yawara! A Fashionable Judo Girl.

Published in an anthology of 4 stories about Jigorou and 2 other stories completely unrelated to Jigorou or Yawara. One of them is called A Bat & 2 Balls.

Mezuki is a former firestarter for the Lord of the Underworld. After accidentally burning down the Lord's palace, she is reassigned to Earth to keep tabs on humanity's sinning. She takes an interest in a particularly evil-looking man...

1-6. Koi wa Misoji o Sugite kara
Uehara Sakura, a 30-year-old office lady, is on a date with her 22-year-old kouhai from work, Yamada Yuu. While Yamada is completely heads over heels for Ueda, she absolutely hates him. Will those feelings hold true when they get to their last destination -- the Love Hotel.

7. Boku ga Seifuku ni Kigaetara

8. Ohikkoshi Bugi

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Twenty-four-year-old Kirara is on her way to her wedding when she is killed in a car accident. However her love for her fiancé is so strong that she is permitted to return to earth as a ghost to see him. But she is sent back 8 years in time, to when she and her fiancé first met. However her own meddling in the past may make her 16 year-old-self turn away from her would-be fiancé.

Volume 1: Kouichi and Mao are childhood friends, but as they enter High School, they become more and more distant. And as Mao becomes more popular and beautiful, Kouichi wishes he could be popular too, and eventually get a girlfriend. Mao decides to help him... (Written by Aymie) Based on a bishoujo game. As per the title, "Various Heroines", each volume of this manga focuses on a different girl Kouichi can eventually end up with when you play the game. So, think of each volume as a story separate from the rest.

This is a cute dialogue-less little story about a young girl and an inquisitive little feline friend.

Haruka and Kanata's cousin Yuzu is coming to live with them, but she hates men. Enter Haruka's brilliant idea: Kanata should crossdress.

A one-shot manga. It’s an action/comedy story about a woman named Tyria who is a maid in disguise, but in reality she is sort of a counter-terrorism operative. It's up to her to stop a hostile takeover by pirates on an airship using only cooking items, like a frying pan, cutting knives and even a fork as apart of her deadly arsenal.

Set three months after the first series.

Humans are a despicable lot, committing sin after sin, filling the endless boundaries of the underworld with tortured souls. Now, it would seem, Hell isn't so endless after all, and it has become dangerously close to filling, and then overflowing into the human realm. Princess Lucuha sees this imminent disaster and has a plan: save Hell by making humans decent again. Of course, the angels can't simply allow demons to roam freely on Earth, and they do their best to stop Lucu and her dastardly plans.

Nominated for the 12th Annual Osamu Tezuka Culture Award.

Fuuta is an average-looking salaryman who's never had luck with women. However, all that changes when he meets a strange girl through a dating agency. She's nice, but has an odd habit of always wearing masks on their dates. One day, Fuuta sees his mask-wearing girlfriend being attacked by (what he thinks are) thieves. Fuuta saves her from them, and full of happiness and gratitude, the girl confesses and proposes to him. The night they get married, she finally takes off her mask and reveals her identity: She's the super-idol singer Kirari who Fuuta admires! Thus starts their life as a married couple.

Kogane is a socially clueless, glasses-wearing girl who works at a convenience store. She has a huge crush on her manager, Fuuta, but he doesn't seem to return her feelings at all. Luckily, Kogane has a little sister, Akane, who is much more fashion conscious and adept at social situations. Akane is determined to help her awkward big sister get the boy she wants!

From Aerandria Scans:
“Cause trouble in Shibuya, and I’ll hear everything.”
Chiryu Mamoru is the former Shibuya Gang King (Crime Boss). Now he’s protecting the streets of Shibuya as the youngest lawyer in history. With an ear piercing as his lawyer badge and law as his weapon, he works to destroy the nest of evil and to protect the people. Introducing one lawyer’s all consuming fight against heresy!
“You can’t protect anything with violence… that’s why I choose the law!”

Tomo Fukuya loves taking pictures of himself while cross-dressing, and he's gained some notoriety among his schoolmates because of it. He participates in his school's beauty contest during the school festival against his friend Kei Okabe.