From September Scanlations:

With a father who's a singer, a mother who's a movie star, and an older brother, Shougo, who's the lead vocalist for the super-popular band The Crusherz, Sena Izumi, an otaku college student is the only dull one born into this super famous and talented family. He loves Magical Girl LalaLulu and is working hard to become a mangaka, but one day he winds up appearing in a TV commercial he just can't turn down. There, he's reunited with Ichijou Ryouma, the super-popular young actor he costarred with on a project ten years prior.

Risa-chan have been friends with yuki-kun since the day he transferred to her school. what will happen when yuki-kun goes to Risa-chan and tells her he is in love with her childhood most beautiful friend. while she have feelings for him, will she support him or....

From Easy Going Scans:

Leesu came from a poor family but he didn't mind at all not having any money or status. Being the school's strongest fighter made him feel as if he was on top of the world in his eyes. But alas, a car accident made him lose what was most precious to him; His ability to fight! Craving for his past glorious days he turns to fencing with the hope to regain what he once had?

Great Mazinger starts after the defeat of Mazinger Z. Tetsuya Tsurugi is the new protagonist, piloting the powerful Great Mazinger, a creation of the once thought dead Kenzo Kabuto, the father of Koji Kabuto. This time the enemy is the Mycene Empire and its powerful robots.

From Del Rey:
Little witch-girls Chocolat and Vanilla are best friends, but only one of them can be Queen of the Magic World. To determine who deserves the title, they must go to the Human World and enter a strange competition. Whoever attracts the most human boys wins! The girls had planned to be best friends forever, but both of them want to be Queen. Will their rivalry ruin their friendship?

Won the Kodansha Manga Award for Children's Manga in 2005.

We follow the bumpy and funny romance between bubbly Tamoko and the serious Kanji. With Kanji's father running an idol agency, and Tamoko being the daughter of their top-selling idol, Shinju, things get complicated. Tamako must hide the fact she is Shinju's daughter to save public face, and at the same time, she is determined to be Kanji's ideal wife (as was promised when they were little kids). It doesn't help that Tamako's pretty clumsy and poor of domestic chores, but no matter what comes down the road, she's not about to give up!

1-3) The Cupid Who Ran Off
(Kakedashita Cupid)
Mayumi is a shy high school girl who watches Yamano from the other side of the fence after school; she loves the exhilarating moment when he high jumps and is flying through the blue sky. She can see it even when she closes her eyes. But is she so intent on watching Yamano-kun... that she doesn't notice that he's watching her, too?

4) I Can Hear the Footsteps
(Ashiato ga Kikoeru)
Shizuka's charm bracelet comes with a condition: She can have any wish she wants if she can suppress her favorite thing for two months. Her wish is to be a more grown up woman, but handsome, and surprisingly childish classmate Naoto may make that impossible.

5) Peter Pan I Love You
(Piitaa Pan no I love you)
When flighty Eri accidentally injuries Takumi's hand she finds out what a sexist he is. He thinks girls are loud, spoiled, and cry easily. Eri is determined to prove him wrong. However, Takumi begins to change Eri's opinion of him as well..

6) Of Course I Can't Wait Until Nightfall
(Mochiron Yorumade Matenai) from the series 'Yoru Made Matenai'
Haruka's grades have been falling, and she's pretty sure she knows the reason: Her new stepbrother and affectionate lover Tsukasa. To keep herself from being distracted, Haruka imposes a no kissing rule on Tsukasa. But he's not going to give up without a fight...

From Viz: What happens when an all-girls' high school reigning tomboy finds out her school is about to be filled with boys!? Hanabi Oozora is a rambunctious sixteen-year-old tomboy who comes to the rescue of her less assertive friends--sometimes in exchange for food. So what does she do when, all of a sudden, her all-girls' school is about to be integrated with an all-boys' school?! She meets and falls in love--naturally--with one of the three most popular and handsome boys in the Student Council, Yasuaki Garaku! Unfortunately, Yasuaki doesn't care for girls... and when the girls' Student Council clashes head-on with the boys' Student Council, Hanabi steps in to become a member - hoping she'll change Yasuaki's mind!

In one unusual Tokyo high school, education takes a backseat to brawling as warring clubs wreak havoc in the hallways and chaos in the classrooms, all vying to be the baddest team around! Although they often contribute their fair share, only a handful of students serve to stem the tide of violence in this untamed outpost. These are the few, the proud, the powerful: the members of the Juken Club!

From Del Rey:
Cyan is a teenage cat (in cat years!), and when his beloved young master falls ill, the parents abandon Cyan in the basement of a luxurious apartment building. Now Cyan finds himself smack-dab in the middle of the biggest feline territorial battle in Japan.

Wakamatsu Masato lives with his step-sister, Miyuki, whom he does not have blood relationship with. Their father is always working oversea (in fact, he has not appeared in the manga at all...) and left the two of them living by themselves in Toukyou. Miyuki is cute, nice, sensitive and very popular among guys around Masato. Masato has a girlfriend at school whose name is Kajima Miyuki, who is pretty and gentle, the ideal dream of every high school boy. It took years for Masato and his sister to realize whom they love and care most after a lot of events.

This manga was very popular in Japan and was one of the winners of the 1982 Shogakukan Manga Award for shōnen or shōjo manga, along with Adachi's Touch.

From Tokyopop: Goddess Pandora was sent to Earth to collect "gifts" that were spread among humans. She has a nice body that can tempt anyone who looks at her, but when she uses her powers, she shrinks to a young girl's body. The only way to gain her power back is to kiss her reluctant peon, Aoi.

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High schooler Torii plans to get the girl, even if she is his teacher. The teacher plans to grow up and leave behind her basketball-playing youth. In basketball, planning and strategy can win the game, but is that also true for real life?

From Psycho Pandas:

"I have something I don't want to lose—
So much so that these terrible feelings have grown."

A pianist who attempted suicide 3 times, Juri, is taken to help her aunt at a prison where murderers who killed indiscriminately are sentenced to death. There, she meets a man named Yuu who took the lives of 3 people. A mother's antagonism--a brother's death... Together they embrace the violent rebellion in their hearts caused by the large, deep scars they carry. However, before long, they both embrace an earnest hope in their hearts. "I want to live..."

An adaptation of a novel by South Korea's most popular female novelist, Gong Ji-Young.

From Fallen Syndicate: "My father's last words were a curse, binding me even after his death." Genkyou is a city-state ruled by status and comprised entirely of nobles. Crime and underhanded deals seem to be an everyday occurrence and one in which many turn a blind eye. To fulfill his father's dying words, Iori travels to Genkyou determined to do whatever it takes to extract his father's revenge. However, their may be more to Iori than meets the eye.

From Shogakukan: Ping pong. Table tennis. Fast, furious. You might have seen it, even played it, but you've never seen it like this! The action centers around "Smile" Tsukimoto and "Peco" Hoshino, two high school students in the midst of adolescence and out to prove they've got what it takes in the cool, cruel world of sports. This manga even got adapted into a live-action movie.

In this school fantasy story set in the distant future, creatures contaminated by pollution have overtaken the land, forcing humanity to live in isolated mobile cities called Regios. One such city named Zuellni is a self-contained school in which freshman Layfon Alseif has just enrolled. Layfon reluctantly joins the 17th Martial Arts Studies Unit led by the third-year student Nina Antalk and embarks on a series of adventures.

An original side story that focuses more on Nina.

From MangaHelpers: Puzzle fanatic Daimon Kaito has been crazy about solving brain teasers, puzzles and riddles his entire life. He attends the prestigious Root Academy with Nonoha, but spends most of his time creating and solving puzzles. Kaito is one of the few genius teenagers that attend the school who has been given the title Einstein, along with his other just as brilliant classmates who were given the titles Galileo, Edison and Da Vinci. Together, they attempt to solve a puzzle that, since its creation centuries ago, has never been solved. But the genius students soon realize that there are dangerous forces behind the impossible puzzle. [vyc]

Pai is a strange, provincial woman who has come to Tokyo from the Tibetan highlands. Somewhere in Tokyo is a young man who can help her in her quest... to become human!
When Pai finally finds Yakumo, they set off in search of the artifact that can transform her, but it will take all of her mystical powers to keep the reckless Yakumo alive, even if she has to steal his soul to protect him!

Winner of the 1993 Kodansha Manga Award for Shounen.