Ayumi and Chika are always together, but as they grow up, time drifts them apart. Only when that happens does a realisation strike someone.

From Aerandria Scans:

Story 1: Sweet Tear is the Flavor of Love
After a painful experience in love, Tani Rika started to have a cynical view of love. She falls in love easily, confesses her love easily, but the moment the guy tells her that he loves her, she dumps him. This time, her new target is Tanabe-sensei, a teacher at the cram school she’s going to. Making him fall for her is just another game to Rika - or so she thought, but she started to develop feelings that she thought she had forgotten a long time ago...

Story 2: Altair's Love Letter
Sueo, a countryside girl, becomes friends with Tsutsui-kun, the lonely city boy. After that, every summer he goes to see her, without fail. Suddenly, he doesn't show up, for three years! She sends him letters, but he doesn't reply. What's going on?!

Story 3: The Boy from the Sleeping Country
Matsuri, who has been single her whole life, is on her way home from school, when she falls down with her bicycle. She's 'helped' by a mysterious boy, who's at that place everyday... He says he's there everyday because he loves that place, but... is it really the only reason?

Wait! My heart's beating? Is it because of him!?

From Intercross:
For Yui, she has no "freedom" whatsoever. Every single day, she's always been ordered around by her childhood friend, Aya, and her little sister, Chika, and she can't help but to obey them. Though, one day, she receives a love letter from a classmate! For some reason...Aya seems very annoyed by this.

Collection of shoujo-ai oneshots found in Yuri Hime and Yuri Shimai. 1. Akai Kasa, Shiroi Kasa (Red Umbrella, White Umbrella) - About two friends and their ideas about femininity. 2. Nuigurumi no Harawata (Stuff Animals' Insides) 3. Michikusa (Weeds on the Wayside) - About a girl who's pretending she likes girls. 4. Tiger Lily - An old woman remembers the past. A helpful bit of information: the two main characters are drawn as their younger selves even in the scenes that take place in the present. 5. Short Cut - If imitation is the sincerest form of flattery, then the main character of Takahashi Mako's "Short Cut" is certainly being paid a great compliment... unfortunately, she doesn't see it that way. 6. Koorizatou no Kakera 7. Natsu no Mayu - About a girl who admires her friend. Also deals with coming-of-age issues a bit. 8. Sandals - About a girl who has a crush on her best friend. 9. Kanojo no Tonari (Next to Her) 10. Otome Cake (Maidens' Cake)

Financial conglomerate Asahi, which is worth 8 trillion yen, has Hinaka as the only daughter of the head of the family, who is on the verge of death. Hinaka keeps fighting off all the looming assassins, but what will happen when she's confronted with the "strongest professional hitman," Kyouma?

From Seinagi:
Ryouta Asagiri unknowingly wanders into a country of vampires that had just recently become independent from Japan. There he meets a pretty little vampire girl named Shiren Fuyukura, who suddenly questions him and bites him, later to claim that he has become her "Minion". He soon finds out that he is unable to leave this country of vampires (The Sacred Blood Empire) and thus decides to comply to the vampire girl in becoming her "Minion".

Boys chase after the popular girl, Nao (with big breasts), but Nao has only ever had her eyes on her childhood friend—Akio.

Depending on Akio, her first love could be a sweet story, or simply a prologue to a new beginning.

From Antebellum Scanlations:

At the start of high school, Takae fell in love with Araki. However, Araki just happens to be indifferent to love. Against her better judgement, she begins dating someone else, but that relationship turned out to be a big mistake...What will become of Takae's love!?

From JShoujo Scans
Includes an extra story:
"Yori-chan has a Love That'll Never be Requited"
(Sequel to "Like Snow Falling on Harbor" from A Rose-Colored Tomorrow)

It's been over five years since Yori watched the car that his best friend and Kurita, the girl he was in love with, were riding crash into another car, leaving Kurita in a coma that she hasn't come out of since. His best friend, who had also been in love with Kurita then, has already moved on and found himself a new girlfriend.

For Yori though, time stopped that horrific day many years ago. Can his distant cousin, a spunky teenage girl who harbors a huge crush towards him, make him realize that it's time to let go?

Mitsuya Haruyoshi is a devout Christian High-school boy since his father became a priest after his mother cheated on his father. He tries to avoid lust and desire because his father wants him to become a priest.
One day his female childhood friend Sonoda Hanako, the daughter of a sweetshop owner who goes to the same school invites him home.
Turns out her family shifted business to a sex shop to counter the effects of declining birthrates on their business. She reminds him that he promised to marry her when they were children and even gave her a ring made from Aluminum foil. She also notes that Christians only do lewd stuff with people they are married to, so if she does lewd stuff to him he'll have to marry her.

Oneshot about a girl's short-lived quest to become more interesting in order to catch her crush's attention.

Zero experience points, shy and pure patissier Erio and Kai, a writer with a mysterious past. Kai is a regular guest at Erio's shop and always messes with Erio, but they are soon drawn to each other...

As well as the title cut depicting the sweet and wet love of the two, this book contains other sweet and sexy short stories.

Second story is about a teacher and his student.

Third story is about a magical cat-spirit (kettoshi) kingdom, and a young kettoshi's journey to adulthood.*

Fourth story is about Saki, a kettoshi who is suffering from an unrequited love in mating season.

Fifth story is about two kettoshi who are living as cats in the human world. One is being set up for a mating session with a female cat... will the other try and stop the situation?

Sixth story is about a boy who was wham-bam-thankyouman'd and has decided to seek his revenge by stalking his ex, who turns out to be a kettoshi. Will revenge be taken, or something else?

Extra about Kai's past.

*Could be considered shota. Boy is 14.

From Devious Breezes:

Uesugi Teppei and his father lives deep in the forest in search of a buried treasure. Isolated from society, Teppei became a wild child with no restaints until one day his uncle found him. Teppei finds out that he is actually from a very prestigious family with 5 siblings. For the first time in his life, he will have to attend school and live under his grandmother's rules. Can Teppei really adapt to his new environment?
It was also adapted into an anime that aired from September 12, 1977 to March 27, 1978.

Based on presentation from Chibi Manga:

Masumi is in love on with her childhood friend since a long time ago. But because of her pride, she can’t show him her true face...

Spin off of the popular light novel, follows in 4 koma version the spats between the honor student Kidou Eita, his "handsome girlfriend" Natsukawa Masuzu and his "hyper active" childhood friend Harusaki Chiwa.

Rather than "a story" placed on a continuity, it's a bunch of 4' skits and jokes using the well known characters.

From Ivyscan:
Consists of 4 short stories.

1. Orange Kiss
Kijima Aka had a dream. In the dream, she and an orange haired boy kissed under the setting sun. And that boy just so happens to be the guy who's in the same class as her, Shimizu! She always thought Shimizu had some kind of grudge against her because he seems to hate her. Will Aka's dream become reality?

2. Happy Words
The story of the past of the main characters, Saiko and Ichi, from "No. 1 Girl" in the tankubon Caramel Milk Tea.

3. Last Train Under the Night Sky

4. More Orange Kiss

Includes "Another Usami's Biography."

From Chibi Manga:

Her parents decided to go overseas and she's to live in the house of her father’s friend. "In that luxury mansion, there are beautiful boys!" she thought for a brief moment. But these two brothers are trying to get her out of the house and things happen to be taken a little too far...!?

Twelve-year-old junior high school girl Hasumi Kohaku moved into town in search of her mother. She is gifted with ESP and the ability to fly-- well, only when the sun is down. Otherwise the sun could make her power fade away. Kohaku soon uses her powers in front of her classmates, in order to save her friend Yuuro from falling out a window... but during the day!

Sarashina Tsumugi is a new transfer student who is thrilled to finally be able to go to the school her mother graduated from. It's still summer break, but Tsumugi arrives at the school early for an assembly.

Almost immediately after setting foot on campus, she encounters two guys and a girl arguing apparently fighting over a ring. The girl is trying to break up the argument, but her actions don’t help much. In the scuffle, the ring goes flying through the air and lands down Tsumugi’s uniform blouse! One of the guys pounces on Tsumugi, tearing her blouse open while chasing after the ring!

Shocked and horrified, Tsumugi slaps him and desperately tries to cover herself. What is wrong with the people at this school! Anger immediately sets in, and she yells at both guys, reprimanding them for their actions. Her anger is so fierce, that they immediately apologize.

Tsumugi learns that these guys are cousins: Ibara Chitose and Ibara Hajime. Although Tsumugi has a bad impression of them, it turns out that Hajime and Chitose are extremely popular. They are even related to the school superintendent and currently serve as co-vice presidents of the student council! And what's this being super close? After the scene earlier she knows they are nothing but liars: they didn’t get along AT ALL!

After finally reaching the morning assembly, she hears her name being called. Ibara Chitose, looking rather smug, has just declared that Tsumugi is their endorsed candidate for the next Student Council President! What will become of her peaceful school life!?