From Viz:

Demons like Rara are supposed to cause mischief in the mortal world and draw humans to darkness. They're not supposed to help mortals and they're definitely not supposed to fall in love with them! But that's just what happens when Rara enters high school, where a hot guy named Retsu Aku calls her "Gaba Kawa"!

Collection of adult comedy short stories.

Ling Er's hand in marriage is the prize in the competition set up by her wealthy father, however, none of the men entered know her horrible secret. Our hero through a string of events, ends up falling out of the sky and miraculously beats out the competition in one swoop. Just when he thought everything was going to turn out great, he was stunned by the reality.

The princess has been captured by the evil demon king and her father offers her hand in marriage in return for her rescue! But things aren't all what they seem...?

From Yen Press:
Alice is having a nap in her garden when suddenly before her there appears a young man with rabbit ears! He whisks her away to a fantastic (but dangerous) world that seems straight out of a fairy tale, but one where every resident brandishes a weapon…Will Alice ever find her way back home?

From AQUA Scans:

At the outskirts of town in a mansion, which is rumoured to house devils, live the masters of the household: the young miss (master?) Lily and the strange young master (a NEET) It. We follow them as they carry out strange requests, ones which normal humans cannot settle themselves.

Yet again, today, a young girl that wishes to find her black cat has paid a visit…

Once, there were two worlds that existed on this earth. In the sky where the deities lived was the Senninkai. On the ground where, of course, the people lived was Ningenkai. In the novel adaptation by Ryu Fujisaki, Houshin Engi follows Taikoubou on his mission to rid the Ningenkai of the evil immortals that have resided there. This colorful historically set manga keeps the reader on their feet and loving every minute of the in-depth characters and exciting adventures

From Aerandria Scans:

The uncommon fortune-teller Grand is the one who rules Dene, a big country. Tia, an assassin, was sent there to assassinate him! Already lost the will to live and failed her mission as an assassin, Tia was saved by Riis, the head of Grand’s guards. Gradually, Tia starts to regain her will to live, however…?!

With 18th century Paris as the stage, in the age of automates, the city is attacked and put under siege by a maniacal Count and his giant automate. It's up to Jeep to take up her family's destiny and call upon the support of her imprisoned uncle to defeat the wicked Count before he destroys Paris and its people!

One day, university student Narumi Daisuke meets a pink kigurumi rabbit in the street. This kigurumi, named Arita, falls in love at first sight with Daisuke! But, no matter where the two meet, it seems that Arita won't take off his bodysuit. To Daisuke, who finds this strange, Arita makes a shocking confession! If he takes off his costume, he will die... "The truth is, I'm an Undergrounder!" Is he for real?!

By night, junior high student Yoshimori Sumimura is a "kekkaishi"--a demon-hunter who specializes in creating magical barriers around his prey. By day, Yoshimori's got some other demons to battle: an addiction to sweets and a seriously crotchety grandfather! Yoshimori's pretty 16-year-old neighbor and childhood friend, Tokine Yukimura, is also a kekkaishi, but their families are feuding over who is the true practitioner of the art.

Won the 52nd Shogakukan Manga Award in the Shounen category.

The pilot for Kekkai Sensen.

From Esthétique: This is a crossover between Kanon (Key) and AIR (Key). Each chapter is a separate story of Kanon (Key) or AIR (Key), they're just short mini stories that were never seen in the anime.

From Yen Press:

Legend speaks of seven heroes, each one bearing the power of one of the stars of the Big Dipper. Two of these stars are constantly in conflict, destined to battle and throw the world into chaos… Not that Taitou has ever paid much attention to old stories. Headstrong and defiant, he is the last in his village to complete his coming-of-age ceremony — a fact his sister Laila incessantly teases him about. When he is finally deemed worthy, he is presented with the Kenkaranbu, an ancient sword that can only be drawn by a true hero. As the frustrated Taitou struggles to unsheathe the sword, a mysterious thief appears, making off with the blade and citing the legend of the Big Dipper. The stars have been set in motion, as Taitou sets off after the Kenkaranbu and the truth of his own destiny…Hiromu Arakawa, creator of Fullmetal Alchemist, brings the legend to life!

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!

In the middle of an escape, Lilith, the head of a group of thieves, is injured. She is rescued by the young aristocrat Jean Rhode, but in exchange for being nursed back to health, he demands that she pay him with kisses!

Includes the short story Nil no Koi Mahoujin (Nil's Magic Circle of Love):
Nil, a 5th grader in an academy of magic falls in love with Kowloon, her scary-looking upperclassman. Will she be able to pluck up the courage to ask him to the academy’s dance party? She might need magic to give her a helping hand…

From Evil Flowers:

A short oneshot about the Demon of Love; the Incubus who, in order to become a Full Demon, needs to feast on the essence of 10,000 women. However, the last woman he chooses is actually a boy?! So, the Incubus decides to live with the boy, until he has completed his quest to become a Full Demon. It’s not shounen-ai, just a comedy.

A failed youth pill turns the pretty Pozsi, a resident witch of FairyLand, into a little girl. She is dating the handsome and kind Prince Yvrin, but how will he react when he sees his beloved Pozsi as a child? Is there a cure?

This series references many popular fairy tale stories by mixing in its own little twists and showing these popular tales from a whole new perspective, the perspective of a witch!

From Project Kurai Ryu:
Young Kai has been passionately idolizing Ginta ever since his heroic battle in the War Games of six years ago. Since then, ARMs have become a common thing, Guardians especially! Kai himself doesn't have one though, and dreams big of being able to get an ARM like Ginta's! When his caretaker, the old ARM-smith that took him in after his parents' deaths, sends him out on an errand, he is attacked by a bandit from "chess"! In his escape attempt, he finds more than he bargained for when he comes across Babbo! But, now with Babbo's awakening, the fake ARMs are going out of control! Is it Kai's turn to save MARHeaven following in his hero's footsteps?

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