From Twisted Mist Scans:

A total of 5 one shots:

1) Ore no Suki na Ko ga Burakon Sugiru!!
Okano Shuu has a crush on Ogata Saeka for 10 years, who has a brother complex. She is always sticking closely with her brother, Ogata Eiji. And this trio are childhood friends. Shuu tries to make Saeka realize him.

2) Amakute Okashi na Sugar Love
Yuko loves wagashi (some type of sweet), and a popular boy at her school, Tsugumi, which happens to be a wagashi maker! Ever since her discovery, she has been a regular at his shop to have her beloved wagashi and to see Tsugumi. However, it seems that his shop has suddenly gained popularity, making Yuko jealous...

3) Chouko to Ippon Shoubu na no da!

From Dazzling Scans:

Matsuri had always been victimized and bullied because of her bright red hair. One day, two brothers, Natsume Fuuzou and Tsukuya, are hired to work at her family's bed and breakfast. It seems they have run away from home and are trying to earn their way in the world. However, there might be more to them that meets the eye... especially the strong, silent Tsukuya who manages to look past Matsuri's red hair and see her for who she really is.

From etc:
Ran's dream is to meet a prince, one of those you see in fairy tales. After several years Ukyo is back... to become her prince? With Ran living in her own fairy tale world and Ukyo not able to express his feelings and thus bullying her, how will this couple work?

From The Zero Alliance:

Louis and his maid, Linette, used to be very close. But as Loui grows up, they become distant from each other. Linette fears that her master doesn’t need her anymore. But is that really the case?

The summer vacation...with a teacher in a vacant classroom. It is a sweet painful love affair that a girl often (o rly?) experiences. This is the sixth issue of the best-selling Cheese selection. Nine other stories are included besides the title story written by Sugi Emiko.

Momiji knits a sweater for her friend, Yunobe, who's going to be in the school's Christmas fashion show.

Lin is just an ordinary high school student. But on the day she transfers to a new school, she gets a video game, which sends her to the world of King Arthur. There, she meets a mysterious wizard, who tells her that her mission is to find and gather the Knights of the Round Table and find the Holy Grail.

After jumping into the sea during a cruise, Fukamachi Wataru, the famous musician, lands on an Hoshi Island, a place inhabited by folklore people. There he meets Himukai Antsu, a girl gifted in the arts of singing and dancing. With her, he is able to find his calling again, and once more create music. What he wants is to take her to Tokyo so that she can share her gift with the world.

The series is composed of four protagonists.

Nori: An energetic, upbeat girl who was heartbroken sometime ago due to her childhood friend. Now she is headed to meet Haruna, the lonely kid she always played with back then, but to her big surprised grew up into a hunk.

Kyou: The school's prince. From a distinguished family: he is handsome, smart, athletic and rich. He has never struggled for anything in his life, be it money or women. Haruna's sudden return throws him off momentum.

Saeka: She, Nori and Kyou are childhood friends. She is mature, composed and understands the two quite well. Although beautiful, she has been in love with her teacher since middle school and therefore never gone out with anyone. Will her feelings be answered or will she find an unexpected love around the corner!?

Haruna: The boy who comes back after having been away for many years. His reason for returning is unknown. The guy who’s clouded with mystery shows interest in Nori. Does he really like her or is there something else behind it...

Summary: Nori Sakurada is riding her bike one day, when she meets up with a boy she used to know when she was little. He has grown, but doesn't look very happy...

Also contains a side story called Himitsu no
H-kun in vol.1:
The well-known and popular Hakozaki-kun is the dream of every girl in Miwako’s school. However, he's hiding a secret! One day while walking down the street, Miwako notices him secretly taking photos of elementary schoolers!! Could it be that the famous Hakozaki-kun is actually… a… a pervert?!

As working woman and plant fanatic Sayaka Kōno was heading home from a drinking party, she found a handsome man sitting in front of her apartment who says, "Please bring me home with you," like a dog. With no place for the unnamed man to go, the two begin living together, and their "delicious" love story begins.

In a country where women rule supreme lives a poor but happy boy named Albert. An excursion to the city turns dangerous when he and his friend are abducted by slave traders, and later purchased by a noblewoman's servant. If this wasn't crazy enough, it turns out Albert looks exactly like the noblewoman who purchased him. But she's no ordinary aristocrat. She's a princess! And he's to act as her double from today on!?

From Go! Comi:

Like most teenagers, Mashiro Ichijo has a secret. But Mashiro's secret is that he’s neither fully male nor female! So far, Mashiro's been able to live his life as a boy, but all this changes when he's informed of a new class he must take in order to graduate from his elite prep school. To pass, he must find the “Key”…and the only way to find it is to enter into a nightmare world where his body and soul are put at the mercy of the worst kind of enemies: his classmates!

Chiko is a high school student who can see other people’s red threads, which is the thread that connects one person to his/her soul mate. She uses her ability as a musubi-ya to advise her schoolmates on their love lives, for a fee of course! But upon stumbling upon a hidden room at her school, she sees a mysterious looking white spool of thread that suddenly comes alive and traps her. The next thing she knows, her body has become like a ten-year old kid again and the only way to get back her body is to use the mysterious thread to expel evil spirits and become a real musubi-ya!

From Here:
First year high school student Karin holds tightly to the memory of her childhood love Yuuki-kun; so tightly that she still wears her hair in the same childhood style (two ponytails) to be sure that if they ever meet again, he'll recognize her. Delivering papers to the school infirmary, she meets up with a boy who seems to be coughing up blood (of course it's actually juice). He's an incorrigible prankster who can't resist teasing Karin constantly and pursues her even after she tells him she's still loyal to her first love, much to her consternation!

From Tarot Cafe:

"Why is my life so messed up?!"

Haeun has a step brother who's a gang leader and she gets blamed for everything he does. When her brother makes it so that she is late for class, she has a strange encounter- the encounter that makes her a housemaid for the rest of the year. Haeun, who hasn't even had her first kiss yet, decides to take revenge. But when she finally kisses someone -and it isn't pleasant- what will happen?

A European mystery romance, "Glass Shoes" - the long-awaited conclusion!! The clever Bild, who has figured out that it's Al's spirit currently inside Saylie's body, begins a plot to get rid of Saylie, who will become an obvious obstacle in the future... Meanwhile, Debroyl asks for Saylie's hand in marriage, claiming that he loves her just the way she is, however...?!

1) Passion Kiss (Yokujou Kisu One night) -
Manatsu has a dream of an incredibly fulfilling kiss. "Who was the boy in my dream? That's the first time a kiss has made my chest ache." That's when Manatsu gets a feeling from her classmate, Morishima-kun -- the same feeling she got from the boy in the dream. Without thinking, and despite the fact she already has a boyfriend, she... (!!!)

2) Second Virgins (Sekando Vaajinzu) -
Kawori is prepped and ready to lose her virginity to Shunsuke... until he penetrates her and it hurts like hell. She wants him to stop, but he can't. They get into a fight and stop talking after that. Then, one and a half years later, Kawori gets coerced into attending a singles party -- and Shunsuke is there! ...As the boyfriend of Kawori's friend Nao? How will Kawori and Shunsuke handle their unresolved feelings?

3) Eternal Summer, Fleeting Summer (Eien no Natsu, Isshun no Natsu) -
The first love letter Takeshita Riho wrote was to Sakurai Touma, the class president she had a crush on from second to sixth grade, but the letter never got sent. ...Until now, when Riho's meddlesome friend mails it out. To Riho's surprise, Touma writes back and responds well to her feelings! He's just as Riho remembers him, and the way he writes makes it sound like those elementary school days were the most important of his life. What Riho doesn't realize is the heart-breaking (and tear-jerking) reason why...

From AtoZ:
School will bring a fresh start and a way to break free from her seemingly cursed fate. Disaster strikes before she even arrives for her first day at school and a most embarrassing secret is discovered by Chun Hyuk, an aspiring band vocalist who loves only money and music. Can Yu Goon Goon and her best friend, Da-Jung, find a way to shut the mouths of Chun Hyuk and his fellow band members before her high school life is ruined? Da Jung wants to make a deal with the guys but how high a price are the girls willing to pay?

An ugly rumour breaks Rae and Suura apart, will they come back together? How? A completed project, compiled of nine acts, by mangaka Kawachi Yukari.

From Rosa Negra:
A plain high-school girl, Sun-Nam Bae.
She wanted to be free for once in her life, and decided to rebel. But the result of such rebellion.... being a mom?
"Who the heck are you? Where did a ugly pumpkin like this roll in from? You think I was born a man, just to live with a ugly girl like you?"
Bravely standing her ground against a spoiled young master, Chun-Doong Mah, with her child. Chun-Doong and Sun-Nam's tumultuous diary of raising a child.