Mekakushi no Kuni is the story of high school student Outsuka Kanade who can sometimes see a person's future with a touch, and transfer student Naitou Arou, whose ESP is limited to past events. When Kanade glimpses an unfortunate incident coming, can she change it? She soon befriends Arou, who's no novice. While Kanade’s power is limited to the near future and is somewhat incontrollable, Arou’s is permanent and he can even use it to see an object’s “memories”. Are these teenaged seers of the past and future made for each other? And who's right: Arou with his "hands off" policy about meddling in people's lives, or Kanade whose more proactive stance has already had unhappy consequences?

From Fantasyshrine:

High school student, Kaiya Mito is currently going out with Sakaki Yuma, a young enterpriser. Out of frustration, Mito daringly threatens to cheat on the seemly nonchalant Yuma! What's more shocking is that Yuma seems unaffected by the threat and encourages Mito to do it. So during their vacation in Hawaii, a furious Mito decides to carry out his threat. However, even when he's in someone else's arms, all he can think of is Yuma. But what's the reason behind Yuma's stoic attitude? An adventurous love story.

From CPM:

An alien armada from Jupiter has amassed enough power to destroy all of Earth's defences. Earth's final hope lies in the Space Battleship Nadesico, a ship created using recently discovered extraterrestrial technology.
Can the Nadesico's rag-tag crew overcome their idiosyncrasies and defeat the alien fleet, or will Earth's last hope be lost?

The manga differs greatly from the anime

[From Viz]:

Ginta Toramizu is a 14-year-old kid who doesn't have a lot going for him: he's near-sighted, doesn't do well in school, sucks at sports, and to top it off--he's short! But Ginta is a dreamer and has had the same dream 102 times, always in the same fantasy world, where he is a hero blessed with all the abilities he lacks in real life.

Then one day a supernatural figure appears at Ginta's school and summons him to a mysterious and exciting new world! In this strange universe filled with magic and wonder, he is strong, tough, agile--and he can see without his glasses! Thus, Ginta begins a mystical quest in search of the magical items known as "ÄRMS," one of which may have the power to send him home. Joining him on this epic journey are his companion Jack and the valuable living, talking, mustachioed iron-ball weapon known as "Babbo," which everyone wants but, it seems, only Ginta can possess!

From Aku-Tenshi :

Because her father was sent to London to work, Natsumi, a 4th grade student, also must leave Japan along with him. Her classmates throw a farewell party for her. Natsumi is prepared to go to London, but on the night before Natsumi's arranged departure, a baby suddenly appears in her house after a roar of thunder! What's more is that this little baby is actually the one that Natsumi will give birth to in fifteen years!

Mini Drama: Toast
This is a story of a boy who dreams of being with a girlfriend on the night of the first snowfall of the year and a girl who happened to cross paths with on the night of the first snowfall of the year. The girl, however, mistakes him for a pickpocket when he tries to return the wallet that she dropped. Already in a bad mood from a breakup, the girl mysteriously gives him a piece of toast and leaves him standing there in awe. Was it fate or coincidence that those two happened to meet each other on the night of the first snowfall of the year?

The story of Nanao Shirahane and Kuon Aikawa from Mujihi na Otoko continues. List of Warui Series: Vol 1 Warui Koto Shitai [1-1] Vol 2 Waruiko Demo Ii? [1-2] Vol 3 Kirai ja nai Kedo [2-1] Vol 4 Koi Ja nai Kedo [2-2] --- Warui Koto Bakkashite GomenNasai [1-3 &/ 2-3] Vol 5 Warui Yatsu Demo Ii [1-4] Vol 6 Mujihi na Otoko [3-1] Vol 7 Warui Koibito ja Dame? [1-5] Vol 8 Kare ja nai kedo [2-4] Vol 9 Mujihi na Anata [3-2] Vol 10 Sunao ja nai kedo [2-5]

From Tokyopop:
Yayoi, a spunky high school girl, has inherited spiritual powers from her mother, and she uses these powers to protect people. During a fight with the devil Ura, Yayoi's power turns the devil into a black kitten. Now, even though Ura doesn't hide his desire to "eat" Yayoi's power when he gets the chance, they develop an interesting relationship: the two begin living together, and Yayoi takes her new feline "friend" on her adventures.

Based on a real story which was posted on 2ch, Molester Man is the story of how Molester Man is mistaken for a stalker by Miss Understanding, and how they overcome their personal challenges while slowly growing closer to each other.

Hot blooded manga about... writing manga. There are actually a few series starting with Moeyo Pen (Burning Pen), then later on came the sequel series Hoero Pen (Shouting Pen).

Ichijou Kei is the son of a famous and powerful family. He's disgusted by everyone always sucking up to him, even teachers. But new Sensei Hayashi Satoru isn't interested in Ichijou's family connections, in fact he doesn't seem to like him at all!

Three stories featuring an element of voyeurism - one man observing the object of his affection.

1) Mitsumete Itai (I'll Be Watching You)
Chief Yamaguchi, a middle-aged married company manager, meets up with carefree motormouth Abe Kazuki once a month for dinner and sex. But each man secretly longs for greater intimacy. Over time they do become close, but the Chief's transfer to America and family problems threaten to ruin their fragile affair.

2) Ore ga Iru Kara (Because I'll Be There)
High school student Yagi is caught making out with a girl by Karino, senior member of the rugby club. As the school bad boy, this is no big deal for Yagi - especially since he and Karino weren't friends in the first place. But when the tables are turned a week later, Yagi must summon the courage to be a hero.

3) Yume no Hate (The End of a Dream)
John, a jaded male escort, has dreams of being with Chris, his aloof agent. How can a client's run-of-the-mill filming request drive these two professionals apart?

1) In the End, Love is Your Own Doing
Inuzuka is known as the eccentric prince of the school's chemistry room. His classmates always stayed away from him because they see him as a weirdo. Although one day, class committee member, Akai, is requested by the teacher to "Please get along well" with Inuzuka. However, Inuzuka's interpretation of "Please get along well", turned out to be "Please go out with me" and hence begin the high school love comedy!

2) Princes of Chemistry
The continuation of Inuzuka's and Akai's relationship!

3) Mitsugetsukei Honey
Who is this person that blankly states that he will have Takumi for "takeout"?
- From Forever More

4) Younger Man
Story of Miyabi from Mitsugetsukei Honey and Yui's younger brother, Jun.

5) Junsui Yori Mo Aimai Na
More Impure than Pure

6) I Don't Just Want to Be Cute!

1) The Superior Made of Honey
The handsome hope of the Sales Divison, Ichijyou, discovers that his superior, Supervisor Kirihara, has a body which is too erotic. Since Kirihara hasn’t had sex for the last 10 years, he is agonized by a body reacting to the slightest touch. “This is my first time with such an erotic body... Amazing... It's like the whole body's an erogenous zone.” While Ichijyou is being caught up by the innocent reactions of his supervisor, he is already drowning in that lusty body?! (from Blissful Sin)

2) The Secret Love Potion For You
High school student Itsuki has been despondent since his lover Kouji broke up with him. Classmate and chemistry whiz Kamiya Yuuichirou is determined to help Itsuki by developing a love potion! But is Kouji really worth all the effort?

3) Hunting of the Butler
Young president Tsukasa is always sexually harassing his butlers, and so they always quit. So when charming and surprisingly innocent new hire Mijima Shinichi takes the job Tsukasa decides to take his time seducing the young man. But the task is proving to be difficult...

4) Limit of Endurance
Continuation of Hunting of the Butler.

5) Love Started From the Sea
Drifter Riku relies on men to support him, but has trouble being faithful, which is why his latest boyfriend has kicked him out. Wandering the streets he meets handsome foreigner Gilbert who wants Riku to be his wife for his week-long visit. Unfortunately, Gilbert isn't as easy to manipulate as Riku thought. Has the young hustler finally met his match?

6) He Who Loves Horror Films
Tamura would do almost anything to spend time with his friend and secret crush, Ono. Even go to see the horror movies Ono loves so much. Too bad Tamura is such a scaredy cat. Tamura must try survive the film long enough to enjoy the time with his beloved.

7) If the Lid Was Opened
A continuation of A Superior Made of Honey.

A rumored girl seems that she can't graduate unless she takes extra classes and also pass the examination test with a 60. She thinks that there's nothing to do in the school, but while studying....she finds....

This is extra story can be also be found in the manga, Chocolate Christmas.

The son of a famous pianist, music student Shinichi Chiaki dreams of studying abroad and becoming a conductor like his mentor. Unfortunately, his fear of flying grounds his lofty plans! As he watches other classmates achieve what he has always wanted, Shinichi wonders if he should quit music altogether.
Then one day he meets fellow student Megumi Noda, also known as Nodame. This oddball girl cannot cook, clean, or even read a music score, but she can play the piano in incomparable Cantabile style. And she teaches Chiaki something that he has forgotten: to enjoy his music, no matter where he is.

Winner of the Kodansha Manga Award for Shoujo in 2004.

Keidai Saeki is a high school student who remembers his past life in Pompeii, living as the Italian warrior Sirix. His friends around him are all also reincarnated - although they don't quite remember things the way he does. Keidai's wife from the past? She's now a middle school boy - while his best male friend is now a cute girl?! Throw in a case of love at first sight, and you have a new look at romance - manga-style!

From ADV: Imagine a Neon Genesis Evangelion where choosing the right girl is more important than saving the world! That's the gist of Angelic Days--the hit manga that Eva fans have been waiting for! Based on a popular PC and Playstation 2 game released only in Japan, Angelic Days takes the angst-ridden Eva pilots and sets them in a lighter, brighter world.

Sakuya used to be a fearsome high rank vampire until he fell inlove with Atsumi. Now, he's fallen so low that he can't even drink other people's blood because only Atsumi's blood suits his taste. The problem is, Atsumi is not only a guy, but also a vampire hunter... Their love is more than just complicated, it's a game of life and death for them both!