Riku attends an all girls school and is tall, pretty, and the ace of the volleyball team. It goes without saying that she is quite popular, and as such receives many confessions. However, she turns all the girls down because she knows they are only using her as a replacement for a guy and that they would eventually leave her. Will she ever find someone that won't leave her?

Sang Shang thinks he's the best, brimming with youthful vim and vigor, but what's his life's meaning? He wants to live a wonderful life, but how should he start? After making a ridiculous decision, he meets the right person. After opening his eyes, he and a little egret's life were forever bound. The little egret is a bird who lives life bravely, perhaps Sang Shang will find his life's meaning by moving forward with him?

Satoshi Hase, the writer who brought you technology, and worldviews such hIE and advanced artificial intelligence which appeared in BEATLESS, now takes his place as the World Design Editor in a brand new comic. Taking place in the floating city which was established as AHQ, Mega-float. What is the true nature of this "Magic" used in the near future?

A girl saves Houjou family's third daughter from drowning herself. The girl takes her place as Houjou Ran who shall become the Tendou family's bride but her deceit is seen through..?

From Bandai Entertainment:

In his skyless cavern of a village Simon toils daily, drilling holes to expand his stifling little world until one day he makes an extraordinary discovery: a small glowing drill-bit and the man-sized mech it activates. Before he can give it a second thought Simon's dragged into a plot to break through to the surface by the local gang leader Kamina, only to have the ceiling come crashing down on top of them under the weight of a giant monster! It somehow falls onto the boisterous Kamina and cowardly Simon to defend their village, but once they defeat the monster what awaits the duo on the surface world? Get ready for buxom babes, beastmen, and giant mechs as only GAINAX can provide them!

From AnimeCouncil² : Gurren Lagann... School version, more ecchi and stuff, that's about it :D

A re-imagining of Gurren Lagann. In this alternate version of TTGL, Simon lives in Tepelen city and dreams of becoming a Gunmen pilot after having seen the stars through a crack in the sky. One day, he comes across a strange small Gunmen. The hatch opens, and out comes a beautiful girl named Nia.

From AnimeCouncil²: The other OTHER version(s) of TTGL. The stories not told...perhaps...more like those you came up with after smoking a little too much... Twisted realities and perpendicular universes but above all they know who the hell we think they are. a 4koma manga

Story centers on a boy named Tokio, who lives alongside other children inside a beautiful wall. One day, Tokio receives a message that says "Do you want to go outside of the outside?" In a heaven that has begun to tear itself apart, a group of boys and girls begin their adventure.

Kousaka has a panic disorder that gets triggered by trains. His breathing gets unstable, his pulse races, and his mind gets cluttered. He tries to hide his condition from others. One day, he mistakenly ends up near a station and starts to have an attack. A passerby asks if he’s alright. Kousaka brushes him off, grateful he wasn’t an acquaintance. With a new semester starting, Kousaka and his colleague greet the new grad students joining their area of study. But, one of the new students is…

The story is about conjoined twins, a boy and a girl, and how they - in the wake of the Great Kanto Earthquake of 1923 - come to live with a travelling freak show.
-from Caterpillar

Satoshi-kun, a drifter, arrives in heaven to work at a bookstore as a substitute manager. There he meets Rui, a girl who also temporarily works there. Follow the daily events of these two people as the place they are in (Heaven's Bookstore) help those regain what they lost.

This was actually created as a promo for a movie by the same name(Heaven's Bookstore). http://www.imdb.com/title/tt0423360/Satoshi-kun, a drifter, arrives in heaven to work at a bookstore as a substitute manager. There he meets Rui, a girl who also temporarily works there. Follow the daily events of these two people as the place they are in (Heaven's Bookstore) help those regain what they lost.

Short stories about dog and its owner.

In the Tengoku no Inu Monogatari series:

V.1 - Tengoku no Inu Monogatari
V.2 - Zoku Tengoku no Inu Monogatari
V.3 - Shin Tengoku no Inu Monogatari
V.4 - Kiseki
V.5 - Negai
V.6 - Zutto, Zutto Issho ni
V.7 - Last Letter

From Evil Flowers:

Emi has a friend she keep in contact via text messages, Kei. They promised to meet in the summer but Kei didn't come. It turns out Kei has actually passed away! So who has been messaging Emi? And at the same time, Emi meets Kazumi who reminds her of Kei. Who exactly is Kazumi?

The story of a bird tengu with a soft spot for Kuro, a black dog he picked up one rainy day. But Kuro's true nature is that of a dog tengu, a harbinger of calamity.

"I'll bring you misfortune."
"So what? Stay with me, Kuro."

In his human form, Kuro can't hold himself back when faced with the sweet fragrance of the bird tengu he loves. And so they share their first time and first heats with each other. They won't stop until they're satisfied.

The story of a young man's journey to realise his life-long dream of becoming an air force pilot.

From Aerandria Scans:

Tomita Yuri has hated boys since she was little, seeing them as the devils who taunt and tease her. So when her all-girl school Kinka academy decides to merge with the Ginka academy for boys, her ‘heaven’ is once again threatened by the devils from hell = men. Not only that, but being a member of the student council, she now has to work alongside the male student council of Ginka academy. Will Yuri’s ‘heaven’ be overrun by the male devils from hell?

Prince Naka-no-Oe showed his interest in the talent and beauty of Nukata. He then offered Prince Oama his daughter for marriage, in exchange for Nukata. Prince Oama was in agony as he was devoted to his brother but in the mean time, he loved Nukata. In the end, he chose to let go of Nukata as a gesture of loyalty to his brother, however heartbroken. This was the beginning of the long and epic series of Tenjo no Niji, in which Princess Uno-Sarara, Prince Oama's then young bride, would become his ally in succeeding the throne and later made herself Empress Jito…