From Seven Seas:

During a fateful visit to Tsunojo Girls' School, Chika Matsusato meets the girl of her dreams--cool upperclassman Haruna Kanzaki. Even though they spent only one short day together, Chika will never forget Haruna's kindness, and has made it her life's goal to study hard and get accepted into Tsunojo Girls' School so that they can be together. But will Haruna share Chika’s feelings...?

From Aerandria Scans:

Sakura dreams of the moon, a dream where she gets on a rocket, goes to the moon, and becomes the King there, with no one in her way. That’s why she doesn’t need someone to like… or so she thought, but recently, she’s a bit interested in Arai-kun, who sits next to her in class…?!

Nishina is doing well at his prestigious company but after divorcing from a loveless marriage, his success at work seems empty. A chance meeting at a cafe brings him into contact with the owner, Miyama, an old high-school classmate. It seems that Miyama has forgotten him until he asks Nishina why he's no longer wearing a wedding ring and what Nishina said to him 10 years ago in high school.

(Miyama also appears as a minor character in "After a Storm", set two years before the start of this series)

From Yaoi Is Life:

Takamine's parents failed in their business, and everything was lost in no time. He is then left to live in a shabby apartment with Shirahane, his caretaker since childhood. Why did he stay, when Takamine is no longer his master, why is Takamine getting erect, and why does Shirahane think it's splendid?

Mamori Kusunoki's childhood friend Wakaba Kisaki has been dressing and acting as a girl for years, stemming from a promise to get married when they were kids.

From Fujoshi Spirit:

1-4) Hitomi no Dokusenyoku
The young model newcomer Shinpei moves into the house with several other male top models on his manager's order. There he meets Ryo, the most popular and seemingly flawless star of the group, who is supposed to watch over him. Shinpei's first thoughts are that he wants to become a great model just like Ryo, but then reality turns out to be very different when Ryo does nothing but treat him badly...

5-6) Mijuku no Dokusenyoku

7) extra - Sort of Normal Everyday Occurrences?

From Musume:

This manga revolves around a super-shy girl named Mugi Asai who gets forced into joining the Drama Research Society at her new high school.

1-3. Hitai ni Mikazuki
Ten years ago, Yutaka followed Azusa but ended up falling from a tree. Because of that, she has a moon shaped scar on her forehead. Then the two separated, but when he came back, he was a shinobi! (From ShoujoLove)

4. Gakuen Nanafushigi-kun (学園七不思議くん)

5. Kirakira Ichibanboshi (キラキラ一番星)

If you've ever had a guy steal your girl through the use of a squid-related judo move, this oneshot will definitely speak to you!

It straddles the line between being comedic and just plain odd. If I had to give it some deep meaning, I'd say it speaks to the futility of life. Sometimes the bad guys just win, and the good guys get embarrassed.

from fictiondb:

At his beck and call -- day and night!

Kane Lindley is a regular customer at the restaurant where Shannon works. When an incident results in her getting the sack, Kane comes to the rescue and offers her a job!

As well as being his secretary, Shannon also finds herself caring for his young daughter. In fact, he even persuades her to move into his home! But all the while Shannon is fighting her attraction to her boss, playing the part of a responsible, diligent employee -- until Kane propositions her, daring her to act on the overwhelming attraction between them....

Nine to Five

A compilation of oneshots from Edo era.

One man felt a great ambition as he silently stood in the shadow of the "wolf", whose beauty far surpassed even that of a woman's. His name was Toshizou Hijikata. Read the tale of the Shinsengumi warriors who fearlessly rode through the Bakumatsu Era!

A collection of stories:

1) Himitsu Shoujo (Girls' Secret Nectar)
About a girl whose supernatural ability helps her get everything she wants in life... except the most important thing of all.

2) The Yuri Cage
It's about a girl who buys a "yuri cage" with a strange little girl inside.

3) Planet Aimer-lis

4) Don't Make Me Fall For You
A transfer student finds herself the newest target of the biggest playgirl in school.

5) Dream Drops
The main character buys some magical drops that are supposed to make her dream come true.

6) Love

From Intercross:

Ryouko is a borderline flunky who has to break into school because she forgot homework that will decide if she has to repeat or not. While breaking in, she is caught by the guard, but he happens to be the guy who shares the same last name as her but always gets top scores, Naruse!?

A story set at a girls' boarding school. It focuses on friendship between girls, with a bit of supernatural flavouring on the side.

From Aerandria Scans:
Roochen and Galnia are two countries that have been at war with each other for a long time. Now that peace has been established, princess Aldina of Roochen has to marry the prince of Galnia. However, according to the rumors, the prince of Galnia is a total debauch, and he does nothing but playing around?! Aldina wants to see for herself who the prince really is, so she disguised herself as a boy and tried to approach the prince...

Misono who falls in love with a handsome "boy" one day as she was taking a break from her running. She believes that she shall never meet this "boy" ever again, but after warnings about problems with her foot, Misono decides to not run for a while and help out with the drama club. There she meets her "handsome prince" once again, but it turns out "he" is not who she thought he was...

Maria is #1 in every guy's heart and lots of guys want her to be their girlfriend. Even though she is very popular, she actually got dumped by her fellow idol Katsumi. Although wanting a simple love life, she is constantly being watched as an idol, and everyday Maria is chased by crazy fans. It was under these circumstances that she met a boy. Not only did he steal Maria's first kiss, he also doesn't seem to know that Maria is a super famous starlet!?

Himejima Himiko doesn`t know who her parents are. In fact, she can`t remember much about her past at all. She, in fact, is a sacred child from a parallel fantasy realm. At the event of her birth, during a sacred flame ritual, an evil general with sadistic intentions invades the palace, causing the six guardians of the flame to be dispersed, and nearly killing Himiko. Several years later, Himiko and her adoptive brother return to Himiko`s homeland, to find it torn apart by war; it`s up to Himiko to reunite the six guardians and return order to the realm.

From Shogakukan: Suzu Mochida and her mother work as live-in housekeepers at the home of the wealthy Nakatsugawa family. She secretly loves their elder son Shuichi who is handsome and kind-hearted. But their younger son Shinji, who has an inferiority complex towards his brother, keeps on thinking only about Suzu!