From Tokyopop:

Rinne is a girl who can see and exorcise ghosts (usually with a paper fan). When the school punk saves her from getting hit by a truck, but ends up in a coma himself, she, and his disembodied spirit must defend his prone body from being possessed by this, that, and the other local spirits. Unfortunately, she fails in her task, and an ancient playboy takes over the punk’s body, leaving him to inhabit a pink stuffed monkey. Hilarity ensues.

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.

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…?!

From MangaProject:
The story of the Kasuga family, but mostly the oldest son, Kyosuke, as they move to a new town after being found out to be a family of ESPers. Kyosuke meets a pretty young girl as he counts the "100 steps" (there may only be 99) that lead to his new school and is immediately smitten. However, the pretty young girl, named Ayukawa Madoka has agreed to help her best friend Hiyama Hikaru win Kyosuke. Thus, a love triangle is born.

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.

Kannagi Ayano and Yagami Kazuma are asked to suppress an evil spirit that resides in the home of a collector of paintings. However, the original painting in which the spirit was sealed has been unsealed...!

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...

High school student Akira Harisugawa has been in love with Mao Satomi, a girl in his grade, ever since grade school. The only problem? They've been best friends ever since Akira saved her from being hit by a car, and he doesn't want to ruin their friendship! That is until one day, when he finds a mysterious mirror...

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...

From Iskultrip:
Kaho is being bullied by another girl. One day, while walking to somewhere, she is approached by a man with a goat's head...?

While on a field trip in the 3rd grade a group of six students rescue an artifact from a burning temple. The God of the shrine grants them special powers that will come to life when they turn 13 years old. Reunited by chance in Junior High the six students are each bestowed with a single unusual power and struggle to find the proper use of the power both alone and with each other. But time is running out because they are not the only ones granted powers by the God of the shrine...

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!

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.

Collection of short stories:

1) Love Cruise (2006)
Yuri starts her extravagant cruise trip alone, after her aunt calls her and asks Yuri to go in her place since she had to work. However, since Yuri was just dumped by her boyfriend, she couldn’t enjoy the trip at all. Then, she is called by an audacious young boy, however, the next time they met, he turns into an adult?!

2) Kawaii no ga Osuki (2004)
Ema loves cute things, but they don't suit her. She especially loves the bears created by Minami-san and thinks they will make the perfect wedding gift for her sister. After discovering who Minami really is, will she be able to work with him?

3) Otameshi Kudasai (2005)
Nogawa is a serious sales person who only shows a smile to customers and guests. One day, he offers a free sample of fried Gengis Khan to a Yakuza princess. Later, she begins working with him, much to his dismay.

4) Ryuujin-sama to Oyome-sama (2009)
One day, Kawamoto Mizuho encountered a dragon god who chose her as his bride by paying her father a large sum of money. Although unsure of how to emotionally connect with the dragon god, Mizuho consents to the proposal. Can Mizuho learn to love the dragon god, and does he truly love her or does he only want to use her?

1) Kuraku Naru Made Matenai
Kahoko is like a lovely princess who looks good carrying a parasol. However, she’s actually a half vampire who can’t handle horror movies! She longs for a love like that of normal humans, but whenever she gets into a good mood with her beloved Komaba-kun, fangs start to show... She’s in agony between her instinct and her reasoning...

2) I Can't Stand Not Kissing You
Natsumi has a crush on her childhood friend, Chihiro. But recently in her dreams Natsumi attacks Chihiro by biting him on the neck...

3) Pink Mosaic Kiss
Tomano Miya is always being pestered by AV solicitors. One day Taku from her class helps her out, but only because he wants her in his movie! Supposedly he makes girls look ten times more beautiful...

4) To the Point that I'm Dizzy
Rokurou is the hot captain of the swim club that Megumi is interested in. After running into him and winning the contest, she seems to have made an impression on Rokurou. Is he just playing with her or is he being sincere?

Doujima Kenji and his friends decide to spend their winter vacation ghost hunting, however all but one of them cancel. Now, he finds himself alone with the girl he likes, and it turns out that there may be more to this ghost story than they had anticipated.

Akira Kongou is looking to take down the "23 district project" which involves "banchou" from 23 districts of Tokyo fighting for the right to control Japan. Without meaning to, he becomes a participant with the alias Kongou Banchou and must take down other banchou while searching for the leaders of the project.

A collection of three separate stories.

I. Sui-Ren is Here.

II. Alice in Cyberland.

III. Mother's Guardian.