From Shoujo Crusade:

Because of a strong trauma in the past, Nanno is a coward when it comes to love. When she was a 6th year in elementary school, the boy she loved threw away her love letter. As a result, Nanno thinks she can't love anymore. But she finds she is interested in the boy who joined the same committee as her... However, what will she do when she finds out he is Tsuzuki, the one who caused her trauma?!

Volume 1 includes one shot manga, Speak LOVE.

From StarryHeaven:
The food loving and pure-hearted Sumire Misaki´s family is moving to the same town where her mother and father met and fell in love. Sumire´s mother tells her that its a town where she will fall in love, and she meets her first love in a very unexpected way: the good-looking Kazuki Miyamoto, as he tries to escape from his home. Through an unfortunate set of events, the wheels of fate have begun to turn for Sumire, as Kazuki is more than he appears to be.
In fact, he is a traditional dancer. Will Sumire´s first love be a happy one? Or does a bumpy road await her?

Otomaru is out drinking with her boss and the next thing she realizes is that she’s in a love hotel with him. This frightens her to no end and she just wants to leave, but her boss is persistent, and it turns out he's a very good lover. So they become friends with benefits in secret, as she’s shy and he’s most definitely not. But what Otomaru hasn’t yet figured out is why her boss keeps coming back to her…

From Intercross:

1-3) Koakuma Lion
Uno and Reo are neighboring childhood friends. One day, a friend tells Reo that he should become a model. Now, they are high school students, and Reo has become an extremely popular model... yet he acts like a spoiled child around Uno!

4) Renai@Home
Ren and Ai are childhood friends as well as neighbors. Will their relationship change when a young girl claiming that she's from the future show up begins calling them Papa and Mama?

5) LIFE+B
Sonoda Mio has always been such a tomboy at school but when at home, she works in her family's flower shop. Her family's VERY GIRLY flower shop. Mio doesn't want anyone at school to see her all girly, so when someone walks in, wearing the school uniform, she goes and hunts him down the next day. But when she tells him not to tell anyone, he....!!?!

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!

From Aerandria Scans:

Ryuu, a super-businesslike transfer student from England--with black hair, and blue eyes just arrived! During the night of the Tanabata festival, Ryuu and Yukino became attracted to each other at first sight. He then declares, “You will be mine!” This brought confusion to Yukino, who has zero experience in love. But could she actually be falling in love?

1. Kiss Yori mo Ijiwaru
Miku is admitted to enter an extremely prestigious school, where only elite students are studying, as a transfer student. Her only good point is that she's cheerful and enthusiastic. She's pleased to enter the school because it is a boarding school and the tuition is free. However, Omi, an elite but spiteful student, tells her to quit school. Miku is put in a tricky position, and accepts his challenge to a fight.

2. Sensei, Onnanoko ni Shite (Teacher, Please Turn Me into a Girl!)

3. Scandal Nante Iwasenai (Not a Scandal)
Yuuri is a total fan of the top idol Shibuki. Then during his concert, she gets an unique chance that any fan would dream of.

4. Yubisaki kara Hajimaru Furachi (The Evil Prince)
Keita, a hairstylist and a former gangster, suddenly asks Arimori Tsukasa to be his model after seeing her beautiful hair, but a street flirt comes and Keita saves her. They gradually become friends, but will there be something more?

In the middle of an escape, Lilith, the head of a group of thieves, is injured. She is rescued by the young aristocrat Jean Rhode, but in exchange for being nursed back to health, he demands that she pay him with kisses!

Includes the short story Nil no Koi Mahoujin (Nil's Magic Circle of Love):
Nil, a 5th grader in an academy of magic falls in love with Kowloon, her scary-looking upperclassman. Will she be able to pluck up the courage to ask him to the academy’s dance party? She might need magic to give her a helping hand…

From Esthétique:

Non-chan has never been able to catch up to top stylist and childhood friend Omi. Following in her father's footsteps, Non trains hard at the Jisen Sougou Beauty School. Clumsy and headstrong, will Non-chan be able to triumph as a hair stylist and find love along the way?

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.

From Aerandria Scans:

In the spring of her second year in high school, Asuka sees Masami playing Japanese drums in a festival, and she falls in love with him. However, Masami is deaf, and he has locked his heart in a world without sound. And thus, the two’s melancholic love miracle quietly begins. This is a pure love story in the middle of summer that will make your heart ache.

Volume 1: Kouichi and Mao are childhood friends, but as they enter High School, they become more and more distant. And as Mao becomes more popular and beautiful, Kouichi wishes he could be popular too, and eventually get a girlfriend. Mao decides to help him... (Written by Aymie) Based on a bishoujo game. As per the title, "Various Heroines", each volume of this manga focuses on a different girl Kouichi can eventually end up with when you play the game. So, think of each volume as a story separate from the rest.

Photography is the art to grasp beauty with the one and only tool, a camera. Ooji's dream is to become a photographer that photographs at the front lines of war, to take pictures of historical events taking place in front of his eyes. However, his childhood friend, Sumire, doesn't think that he is capable of becoming one.

In his photography club, Ooji shows his photos to the group, and his upperclassman, Ran, points out that Sumire is a good target to photograph. Ooji manages to get permission to take photos of Sumire, and during his shoot, Sumire notices that Ooji is acting differently than before. Later they find out that one of Ooji's pictures won an award! Sumire congratulates him, but Ooji sees beyond his award. He claims that he learned that he has much more potential than he thinks. Ran, overseeing this, plans to take Ooji to the next level so he can capture true beauty through the lens of a camera!

When Soushi saves Himiko from a pair of foul-mouthed classmates, he demands to let him smell her in exchange...?

A humorous, original Doujinshi by the mangaka of Denkigai no Honya-san

From Nagareboshi Manga:

Ousawa Miko is a 16-year-old girl who loves bread. Especially when it's shaped cutely! One day she decides to apply for a job at St. Molly's bread store, but when she gets there, the person who hires her on is a cute boy her age! Although he makes fun of Miko's clumsiness, he seems to be genuinely kind. But when they find out they're neighbors, they grow even closer.

1-4) Kimi Note
For some reason, Miyasaka finds himself absolutely enamored by the scent of his attractive male classmate Sawatari. But when he tries the cologne Sawatari recommends, the effect just isn't the same–it has to be on Sawatari or the cologne won't have the same effect.
A sweet story about the high school love between two boys.

5) Replay
Nishigaki was in a relationship with his junior Yaguchi during high-school. While attending his sister's wedding, Nishigaki remembers the day they broke up - when he took a gamble and told Yaguchi he would be attending a far away college... to see if Yaguchi would ask him to stay.
What will happen now, years later, when Nishigaki sees Yaguchi at the wedding?

6) Whisper of King
Kugayama has been sleeping with his club senpai since Ashiya made a move on him at a party. They're not lovers, and Kugayama never even knows if there will be a "next time", and so his insecurity continues following their ambiguous relationship. Until a senpai who graduated comes back for a reunion party... and Ashiya starts acting all weird. What will happen to Kugayama?

7) Go Home
Nakano had his senpai suddenly crash at his place after getting kicked out of his apartment for various offensive actions (like a threesome in his room). The problem is, Nakano is in love with his senpai, and knows it's only a matter of time before he can't help himself. One night, Nakano comes home to his senpai on his bed.... with a girl?!

From Tinte:
Suh Hyun-bin grew up under the cruel hand of street gangsters, but after her little brother dies, Hyun-bin runs away and is taken in by a rich family to be trained to become a bodyguard. However, she must hide that she is female, and pose as a man. And so, for eight years, she grows up as a cold, male, bodyguard. It looks like she'll be this way forever--until a fateful encounter with Lee Yun-ha shakes her very foundations, and leaves her conflicting with herself, as her feelings of love clash against her feelings of duty.

#Story 1: A Fashionista Prince
Mayu's a looker and she knows it. However, her rotten personality and selfish ways are too much for ANY guy, and she's never been able to date a guy for longer than a month before he dumps her! Things start looking up when she bumps into Miki, a childhood friend she hasn't seen since middle school who has a...very girly side to him, and she finds out that he goes to the same school as her latest crush! She decides to take advantage of this but first she has to butter up to him...instead she finds herself falling for him! Can she really be falling for a guy who paints his nails?!
(From JShoujo Scans)

#Story 2: A Self-centred Prince
Sayoko deeply loves Natsume-kun but Natsume-kun has still not gotten over his ex-girlfriend. Sayoko agrees to be his sex-friend until he patches up with his ex. Even though Natsume is always cruel towards Sayoko, can she still hope to find a place in his heart?

#Story 3: A Porn-buff Prince
Junya-kun has never dated a girl even though he is the most popular guy in his class. He spends most of his time watching and reading pornographic stuff and Junya intends to keep this fact a secret until his death. What happens when Sumire, a girl in his class, accidentally finds out about his porn-addiction? And it seems like Sumire has a secret of her own...

#Story 4: A Shy Prince
Amy Ichikawa - the playgirl of the class, is known as the "Love Expert" amongst her classmates since she changes boyfriends every few days. Shingo-kun is the class topper but sucks high time when it comes to love. What happens when Shingo seeks love advice from Amy on wooing his crush?

It's 3 oneshots linked by the common theme of gashapon and some of the characters being friends with one another and/or attending the same school.

• Love Gashapon
On the first day that Yuhan moved into her new home, she discovered a window in her room that looks across directly at a neighbor's window. From that neighbor's window a mysterious shadow lurks...

• Love Capsule Toy - Welcome, First Love
YanZhu is a very shy girl, who has always liked her senpai but didn't have the courage to confess. It isn't until Valentine's Day eve, after she bought a toy at Monmon's shop, that she finally got up the courage to confess, who knew...

• Love Capsule Toy - A Prince without the Glass Slipper
Zhou ZiYu is a playboy who has never refused anybody, so he has countless number of ex-girlfriends. He is this kind of guy, yet he meets his soulmate at a masque ball? This is the longest of the stories, has 3 parts.

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?