A collection of short stories:

1 Junjou Erotica (Pure Erotica)
Heartbroken by her first love, senior high year 2 student Rika develops a fear of romance. One day, she finds out her first love's weak point! From then on, she starts her revenge...

Extra: Passionate Erotica (unscanlated)

2 Renai Teppen Shugi (Romance Summit Principle)
The two most popular people in school, Rinko and Shirou, are pretending to be a couple to keep people from confessing to them. Rinko is slowly falling in love with Shirou, so what happens when someone finds out about their fake relationship?

3 Romeo na Kanojo (My Girlfriend Is Romeo)
Seiya was the prince of his school until a new girl, Ryou, transferred in. "If I can't win against her, my only other option is to make her fall for me!"

4 Ouji to Kiss to Nemurihime (Prince & Kiss & Sleeping Beauty)
Shiya has a phobia with boys. What can she do, but ask the almighty ?prince? of the school for help? The prince is shocked that this girl doesn?t like him, and decides to make her fall in love with him! But Shiya has a weird curse: every time a boy touches her, she faints!

Hana, a country girl, has to move to Tokyo because of her father's work, and what's this? Her school is like a castle, her classmates have their own chauffeurs, and everyone is all sparkly and beautiful?
"I didn't realize that at the same time while my world was changing, my indecisive love was also starting to bud..."

From Chibi Manga:

A cute prince in uniform…! Pop & sexy!! A heart fluttering school love! This is Haruki Saki’s extremely cute first collection of short stories!

1) After School with the Prince
There are a lot of perverted and dangerous rumors about him as one would think but I can’t leave him alone, because he sometimes has a sad look. that’s because he’s China-chan's prince! And she is with the prince after school?

2) Fake Reason
Aya is the type of person who can be easily deceived by anything even if it's a lame lie especially from a guy in her class named Yuuya. One day she finds him waiting for her and what's more to it, was the kiss!!!

3) Friends Forever

4) Shape of the Heart

From Attractive Fascinante: More of Mairo and Eiki, our cute Kazuki and his guardian, Sasai and of course, our sexy secretary, Akihiko and our Kyoujima president!

The coldly gleaming crimson sword will protect the life of a prince on the run...

From Dazzling Scans:

When the masculine and popular-with-the-ladies Ooji Subaru arrives at her new school, her encounter with her childhood friend Megumi and the other four “princes” of the school leads to the discovery of her past life. She is the reincarnated Prince Charming, who was a womanizer who seduced all of the princesses in the land. As a result, a jealous witch placed a curse on him and doomed him to be reincarnated as a woman for eternity. In order to break the spell, Subaru must find the “princess”—now reincarnated as men—who is her one true love!

They're not just ordinary butlers! Of course they look after their Master and those around them, as well as do house chores, act as escorts, companions, and advisers… anything you ask! These people that go beyond the calling of a regular butler are called “Yamori”, protectors of the home.
Toto, a Yamori in training, is currently studying at various noble houses, but the trouble never seems to stop! Through his job as a Yamori, Toto gets to see first hand the political, racial, and class tensions throughout his homeland of Mertole as he becomes involved with a scandal concerning the royal family.

A prince who’s been paying back his country’s debt little by little through mercenary work suddenly has the chance to get a huge sum of money. But the catch is, he has to arrest the leader of the strongest thief gang.

From MangaHelpers:

Takahashi Kiji is an attractive, popular, student council president, but he and his two closest friends are bored. Kiji comes up with a game, "The Prince Game." The goal is to bring the worst girl ever to his birthday party in a month. Kiji begins trying to romance the friendless, round-shouldered, weepy Asahi Mabi, who has just been through a harsh breakup. To his surprise, Mabi does not immediately swoon into his arms. Instead, she seems to be a human being, with her own thoughts and goals. She is uncomfortably good at seeing through some of his act. Seducing Mabi requires getting to know her, which is dangerous when his intention is for her to end up in tears...

N/A

Yukino is a new student enrolled in Douwa all-girls high. But this high school isn't a regular one since it's split into two divisions: Botan and Shakuyaku. The students from Botan and Shaku-Yaku are competing with each other in order to maintain their elite status. Because of some circumstances, Yukino, who is a student of Shakuyaku, will meet Nobara, a girl from Botan. Both Yukino and Nobara are caught up in the competition between these two divisions and will play a key role in this rivalry.

N/A

Tsukiko loves to sleep and spends every opportunity to do so. As a usual activity, she has slept at the school roof, however she finds a guy sleeping next to her! This same guy, also have asked her to sleep next to him in order to help him with his sleeping problems. This guy (dun dun dun) happens to also be that very popular guy that is the prince of the school. As they spend more time together, it's harder and harder for Tsukiko to get the sleep that she usually gets...

Rizu has been taking care of Souta since they were young, believing he is "cute Souta, who can't do anything by himself". But what happens when Rizu lessens her motherly-like efforts to pursue other activities? Cute Souta might do something about that.

From Yaoi Desire Revolution & Hoshikuzuu Scans:

He was reunited with Motoi, who was like a big brother to him. But then Motoi suddenly asks him to participate in an experiment!?

Charismatic, princely Asahina is an esteemed guest at the hotel Sakaki is working at as an attendant. It wasn’t supposed to be much more different from pampering other VIPs until Sakaki sees that same “prince” being accosted by a few hooligans.

Popular boy Kagami is horrified when his secret is sniffed out by the infamous anime club President, Tsukishima. Tsukishima agrees to keep his secret, as long as he submits to her terms...

From Wonderland After Hours:

Atsuko is a young high-school girl who leads a troublesome life. Working a scandalous job for the sake of survival, her reputation is in tatters and she is scorned by her peers. But one day she is noticed by one of three rich boys, Itaru, which she resembles in an uncanny way. Immediately she finds herself whisked away from her everyday life and into a new world where she is forced to take on the role as Itaru's double and replace him as the "Prince".

A series of interconnected romantic comedy one-shots involving a Royal Family with 7+ sons in line for the throne and the men they fall in love with. The series also occasionally chronicles the romances of other palace employees and secondary characters. 1) Prince vs Slave - The youngest (7th) prince Shuki, gets hugged by new slave, Fuanron, that seems to know young prince. Shuki starts to bully the slave till their roles get reversed and he even takes place of the prince's teacher, Riiren. Who is Fuanron in reality? 2) Prince vs Assassin - 1st prince, Ryuuen, gets attacked by Seiran, but he defeats him and makes a deal: the assassin can try to kill him all the time, but if he fails, then he must spend the night in the prince's embrace; and so starts Seiran's life as an official consort. 3) Right-handed Priest vs Left-handed Priest - Rei has been in love with Ryuuen (the 1st prince) for years and now he has finally become the minister of the right. He thinks he can get closer to the 1st prince, but there is an obstacle, the minster of the left, Rai, that says that he is in love with Ryuuen too. 4) Mercenary vs Prince (vs The 4th Gun-Warrior?!) - 6th prince, Kagetsu, fell in love in Jin, who helped him with his wounded feet. Now he escapes from the castle everyday to tell Jin that he loves him, but the mercenary doesn't believe him. Suzaku always comes to drag Kagetsu back to the castle, but what are his real motives? 5) Scramble Showdown (?) - Short comics (one page for each) with pairing: Jin x Ryuuen x Seiran, Rai x Seiran, Kagetsu x Fuanron x Shuki, Rei x Shuki (x Rai x Fuanron), Suzaku x Riiren x Tailor. This story of 2nd prince is also featured in the manga, Ousama Game. 王子様★ゲーム

From Aku-tenshi: In a peaceful farmland country, there lived a prince Canaan who yearned for adventures. Together with his personal bodyguard Celeste, the ultimate adventure awaits~! Guilds, dungeons, and... Hot springs!? Based on the ever so popular BL RPG game made by Alice Blue, Oujisama Lv.1