From here:
A cute story about Honoka and the guys she has to live with (a pair of twins in kindergarten, a junior high student, a high school student, a college student) as well as the other guys she meets in school. Honoka is generally a sweet, naive girl which draws an assortment of guys who instinctively want to protect her and maybe become her boyfriend... ^^;

From Manga Abyss:

1) Akaneiro Showtime
Akane Nonomura is a 1st year student in high school with a loud voice, body, and dreams. One day, Akane cried while reading a line from a script she accidentally received with an invitation from Kazuma to join the drama club. Now, she takes the stage as the lead in the play...!

2) Dengeki! Otome-ism
Amagi Shuri is the strongest girl in class because her father runs a dojo. She can't control this strength and someday found herself in a RPG-game with her classmate, the cold Nishina Kei...!

3) Ten wo Tsunaide

4) ACT!
A different version from the first story "Akaneiro Showtime"

From Aerandria Scans:

Karashima is a high school boy with a beautiful voice. So beautiful that he can make anyone do anything, just by saying the words. Because of his potentially dangerous ability, he distances himself away from people but soon finds himself in the middle of various criminal investigations that he can help solve, and a girl named Kokubu who seems to be in love with him.

From In.Difference:

Kazuka is your average high school girl with the exception of having an irregular and calm personality. She wakes up one morning slightly later than usual to find a red thread attached to her finger…

And for her, it isn’t “who” is at the other end, but “what” should she do about it…

Komatsuzaki Ran is not a normal girl. Raised by wolves, psychic powers, the ability to turn into Akai Kiba (The Red Fang)...and a lot of people after her.

From Aerandria Scans:

I suddenly lost my parents. Without a single relative, I must return to my father's birthplace, a village, where I can finish school. But I still cannot recover from the sadness. I am lost in doubts and insecurity. And then, on a mountain road, among the lush greenery, who do I chance to meet..?

Ari is a brand new first-year high school student. Shortly before school starts, she sees a band holding a mini outdoor concert. She is struck by how great the music is. That band, Sunnyside, is currently the hottest indie group. AND, the really cute lead singer, Youta-kun, is a student at Ari’s new school! Even better, he is in her grade, and they will be in the same class! However, Youta-kun is really popular with the girls, and he happily lets them hang all over him, like he's dating them all! Youta-kun becomes really interested in Ari’s piano playing and makes an instant decision - Ari must be Sunnyside’s new keyboardist!

"Aishite Knight" is set in Osaka, and tells the story of Yaeko "Yakko" Mitamura, an 18 year old girl working in her father's Okonomiyaki restaurant. One day Yakko casually meets a little boy, Hashizo, and his odd cat Juliano. Hashizo has lost both parents when still a baby and has been brought up by his elder brother. Hashizo's brother Go Kato is the lead singer of the emerging rock band "Bee Hive". When Yakko meets Go and his friend and "Bee Hive" member Satomi Okawa an unexpected series of events unfolds.

1) Yurusarenai Otoko

2) Aishiatteru Futari

3) Seigi no Mikata no Koi no Yukue (Love & Battle)
Seigo, who grew up in a village, moved to Tokyo to find a job and to fight crime (apparently he has some strange superpowers), since not much happens in his village. One day his childhood friend Touma visits him and challenges him to remind him of his mission. At least that's Touma's claim...

4) Kanoko's Story

Note: Chapters 1-3 are shounen ai stories while chapter 4 is shoujo.

Reimi is your poor middle school girl who yearned to meet a rich guy and marry off rich. Meet Airin, a strange girl who so happens to be rich, but doesn't even look or act like it! Watch as Reimi and Airin turn each other's world upside down! Welcome to a world filled with cuteness, craziness, and comedy!

From Viz:
What does it take to find your true inner self? Zen's memory has been wiped, and he can't remember if he's a killer or a hero. And a lot of people will do anything they can to keep it that way.

From Midnight Scans:

Kyouko has always been alone. Her parents are always at work and she has no friends around her. One day, she found Lucifer who claims to be the Prince of the Underworld in a garden. After being rescued by Kyouko, Lucifer has decided to stake his claim on Kyouko as his wife. But why is Ishii-kun, the guy whom Kyouko confessed to suddenly wants Kyouko for himself?!

From HaruHime:

Due to her ability to tame demons, Mel has been persecuted as a witch all her life. One day, she's summoned to the castle and asked to marry Prince Claude. But Prince Claude is actually...!

Contains an Extra.

From Aerandria Scans:

Ogura Mayuri is a loner in high school, with a penchant for cooking and magic that her mother taught her. She’s already summoned a little demon familiar to help her with baking and other small chores.
But when she accidentally summons a high level demon named Beaut upon spilling tea on her skirt, he allows her to make one wish that he will grant. Mayuri wishes for the stain on her skirt to disappear in exchange for candy. The demon Beaut is outraged by the simple request, but he gets distracted by the smell of sweets - Beaut’s weakness.
Mayuri now uses Beaut’s weakness to bind him to her and do her bidding.

A love story with a devilish Pâtissier.
Matsutani Mika wants to protect the pastry shop her father left her but lately no customer visits her shop. Can Katsuya help her?

The Princess Cafe, a place where anyone can become a princess. It's there that Shiori, who just went through a break-up, meets the valet Kisaragi. He's kind, and dashing...... "I thought the he was truly the ideal guy, but it turns out he's a former gang member!" At the cafe, he's a gentleman, but, outside the cafe, Shiori is often bullied by Kisaragi. Still, she can't change her feelings towards him... The title story and other included works comprise this sweet Love Comic that is dedicated to all girls who are in love.

from Renta!

From MegKF:

Because of her fathers job, Aki was raised in England. So when she moved back to Japan she was teased horribly for being "foreign". Now Aki is also a very beautiful young woman, which makes it even harder to make friends and be accepted. After the coolest boy at school starts taking an interest in her, things only get worse. As jealous girls start to harass her, Aki shows a side of herself that even she didn't know about.

AKB48 is a Japanese idolgroup that has sold millions of albums. Its world famous and every girl dreams of being a member. Hoshina Furea is a shy girl. She has a childhood friend who has a good chance too be an AKB48 member. Her name is Noa. In the school there is an idolgroup named AKB0048. Its a very popular idol group. Only the pretty and talented come to the group. The problem for Hoshina Furea is that she and Noa have the same dream. They want to be in the AKB0048 and get even higher....... What will happen to their friendship? From Phoenix Serenade Scans and Bikkys: In the year 0041, AKB48 had changed their name to 'AKB0048' To protect the affinity of the first generation, they decided to chose a successor. A total screw up research student of AKB Academy, Hoshino Furea, had auditioned but completely failed. And yet why does Hoshino Furea become the successor of the legendary center of 'Maeda Atsuko'?

There's 2 versions, one tankoubon and one bunkoban.

The tankoubon includes:
「暁に立つライオン」 - Akatsuki ni Tatsu Lion (published in Betsucomi, 05-07/2003)
「トルコ取材記」 - Turkey Shuzaizakki (Omake, 06/2003)

The bunkoban version also have the one-shots:
「海に墜ちるツバメ」 -Umi ni Ochiru tsubame
「記憶の足音」- Kioku no Ashioto
Both also present in Umi ni Ochiru Tsubame.

Resume from ShoujoMagic:
Izumi Erina is a senior in high school. She only has one living relative - her older brother Takashi. However, Erina receives an arrest notice for Takashi one day, who is supposed to be in Turkey at the time!! In order to look for Takashi, a mysterious man Sinclair came to Japan and brought Erina along with him. What is the "Black Trap" that awaits Erina in a foreign country...?! A shocking romantic suspense work filled with waves of love and hate!!

From Intercross:

Being left alone on Christmas Eve, Ten is mad; her brothers have all cancelled on her. But then a strange boy comes to the rescue and claims that his name is No. 10?!

After that strange night, she wakes up to find a name tag of the boy who is named Tohga. With determination to find him in her mind, she sets foot to find him and eventually ends up in the very school that he is from.