Two years ago, the famous detective Narumi Kiyotaka disappeared, leaving behind only the words, "I am pursuing the mystery of the Blade Children." Now, his younger brother Ayumu is accused of murdering a fellow student, and begins to discover people with connections to the Blade Children all around him. The Blade Children were born cursed, and Ayumu may be the only key to saving them, but first they want to test him, by trying to kill him with everything they've got. All the while, it seems that Kiyotaka is manipulating events for his own unknown purposes. - From AnimeNewsNetwork Ongoing

From Tokyopop:
Renji is one of God's most powerful but overly violent angels. As punishment for going too far in the last battle against the demons, Renji is sent to Earth, where he must save 10,000 souls. Only then will he be allowed to return to heaven!

After meeting the enigmatic woman Hureika in a sideside village during her travels, the beautiful genius sorceress Lina Inverse’s fate takes a dramatic turn. Separated from her partner Gourry, she finds herself swept ashore onto an unfamiliar land. Faced with violent monsters, she is suddenly unable to wield her magic…. But her grand adventures only begin once she is saved by Lyos, a boy who claims himself to be the “Knight of the Aqua Lord”….

Alternate retelling of the Slayers TRY anime.

In the distant future, mankind has advanced into an age of technological supremacy, where magic is a lost art only mentioned in fairy tales and nursery rhymes. Living in such a world is Light Inverse, a youth who dreams of sorcery…. but suddenly, his home is attacked by demons! With modern weaponry proven to be ineffective against the monsters, all hope seems to be lost…. Until Lina Inverse and Gourry Gabriev are suddenly transported to the future from a mysterious shrine in their time. Can Lina bring magic back to this land…!? *Previously named as Slayers Future.

Stahn Aileron was just a simple country-boy who left in search of adventure. While a stowaway on a transport that got taken down by monsters, he found the sentient sword Dymlos, a relic of an ancient war. Now he's stuck with Rutee, a brazen bounty-hunter, Mary, a kind-hearted warrior, Philia, a naive priestess, and the stuck-up Leon as they pursue enemies who have stolen an object with the power to destroy the world! Based on the game by Namco!

From SOUL.ly PASSION.ate.:

Dingi, the prince of an exotic middle eastern land, has always been fascinated with the Japanese culture, due to his father's obsession. As a prince, he has a obligation to marry at the age of 20, however, the year before that is devoted to pleasure with whomever Dingi wants. Thus, it seems only natural that Dingi would go to Japan to find himself the perfect lover. However, when he arrives, things don't go as they planned when Dingi falls in love with Gen, his host. Who is this Gen and why does he refuse the prince's advances? Will Dingi ever win Gen's love?

Sakata Gintoki is a samurai living in an era when samurai are no longer needed.
To add to his troubles, oppressive aliens have moved in to invade. Gintoki lives with Kagura and Shinpachi, taking on odd jobs to make the world a better place... and to pay their rent.

Volume 24 contains Bankara (ばんから)
Volume 38 contains 13 (サーティーン)

From Bliss:

Halfway through the Tokaido, Hisame’s adventure continues with his childhood friend Itsuki. The plot thickens as Hisame discovers things about his father, and the mysterious demon blade Senju Murasame that used to belong to him. Yakumo, a newly introduced antagonist, desperately tries to get his hands on this sword, and will use all means to achieve his goal. The only link to Hisame's past and clues to as why Yakumo wants the demon blade lies with Hisame's sensei, Hibiki. Can Hisame discover his past and put the pieces together?

Pandora's Box led a cursed existence. Through the curiosity of a woman, evil was unleashed and very nearly covered the world in darkness. Miraculously, humanity managed to seal Maou Kestra back into the box, but only with immense sacrifices. Even without their lord, the demons are still a formidable force that has only grown stronger with time, locked in the abandoned capital of the North, Hameln. Fifteen years have passed since that fateful battle...

Enter Hamel, a travelling minstrel who is so self-centered that he'd sooner cook his guardian crow (and family friend), Oboe, than go hungry for even a minute. Welcome to the world of music and hilarious insanity that is the Violinist of Hameln. Watch as Hamel takes cheap shots at his opponents and bashes pigeons with his giant violin and turns them into dinner.

How WILL the world be saved from Maou Kestra (it's a pun for orchestra, if you haven't noticed) with a hero such as this?

From The Zero Alliance: Sugita Genpaku made a contract with the demon in exchange for the ability to cure any disease. But if he doesn’t find someone to treat within the time limit, his soul will be taken!

Tori Ichihashi, a 10th grade student, has a strong sense of justice, and hates bad guys. Every night, burglars hover around the school that Tori attends. Tori can't let it go unchallenged.

Included are the following stories:

- "First Step"
- "The Wish Under Blooming Sakura Trees"

The world is in mortal peril. Sir Noi Crezant, the Lizard Knight, has been sent to gain the aid of the great warrior Amamiya Yuuhi in hopes of finding the Princess Samidare and protecting the planet from the incredible 'Biscuit Hammer' poised to crack the Earth in two. Unfortunately Yuuhi wants no part of it, and the Princess doesn't prove to be the shining 'hero of justice' role model that Noi had hoped for.

Average, everyday Japanese gameaholic gets sucked into an alternate world where he has summoner powers and life keeps turning out to be like one big video game

Fuyuki Souichirou is a first year freshman who arrives for his first day of high school only to find a great battle raging on in the school yard.

Collection of the following stories:

1. Lost Princess

2. Kekkaishi oneshot

3. Fake!

4. Birthday
Hiroshi is weak when it comes to his parents. He doesn't hate his parents nor do his parents abuse him. Actually, its the exact opposite; he dislikes being spoiled by his parents. Because his parents had him at a fairly old age, his parents idolize him and gives him too much affection. They hold fancy birthday parties, preserve his art projects in a glass case, make him extra-large puddings, make banners for him even though he is on the bench, etc. They are just too much for Hiroshi who just wants to be an ordinary high school student. On his 15th birthday, his parents give him the craziest present yet: a toy that will make him a hero. Can Hiroshi fulfill his wish to become an ordinary boy?

5. Yami no naka

One-Shot by Sorachi Hideaki(author of Gintama) Originally published as part of the Top of the Super Legends one-shot series, It was included at the end of volume 38

Overdevelopment and crowding in Japan has forced many of its indigenous spirits and ghosts to lose their homes. Due to problems caused by the homeless spirits, a new profession was created, the Ghost Sweepers (GS). Private exorcists for hire; they serve only the highest bidder to survive in the cutthroat corporate world. Among this, the Mikami GS Company, led by Reiko Mikami and her two assistants, the teenage boy Tadao Yokoshima and the ghost girl Okinu, is said to be the best.

The manga setup is scenario-to-scenario, with many plots intertwining classic Japanese culture and modern day realities, with occasional references to Western influences. In between these plots are some longer story arcs where new characters are introduced and the existing characters are further developed. There is no one ongoing storyline, therefore the plots are character-driven and serve to gradually develop characters, especially the main protagonists.

GS Mikami Gokuraku Daisakusen!! won the Shogakukan Manga Award for shounen.

Yukinari Sasaki is an average high school boy who has gynophobia (female-phobia)...and an allergic reaction when girls touch him. One day, he falls through his tub to a bath to an alien planet called “Siren” where the population is 90% female. There he meets the sweet Miharu, who he can touch without breaking out into a rash! When the pair returns to earth, they’re joined by a wacky collection of friends and enemies who make every day one of laughter, life lessons, and fan service!

http://comic.naver.com/webtoon/detail.nhn?titleId=395444&no=1&weekday=sun

From Taciturnity Scans:

Ever since the day Ran Kurono's older brother, was killed while protecting Sei Ohtori, she has dedicated her skills and life to one day becoming the First Knight of the next head of the Ohtori family, even concealing the fact that she's a woman forever. For generations the Kurono family has served the Ohtori family as their First Knight, but 11 other lower knights with ill intentions of using the Ohtori family's authority vie for that title. Not only that, but Sei is being tested to see if she is suitable for having the title of head of the family. Upon entering Saint Locks Academy, the days of both Ran and Sei's trials begin, all the while being helped by Sei's untidy and unrefined fiance, Ibara Tennou.