From Serenus-Dreamers:

Midori lost her mother when she was young and now her father's gone too. But her dad left her with a surprise: a fiancée named Tetsuya. So now, Midori has to live in a good-looking men only apartment (Harem Lodge), which is actually filled with weirdos. What is going to happen to her? Well we just have to wait and see...

The energetic Natsumi is a newly employed at a Housemaking company. She works hard to get Section Chief Tohjoh's (who she fell in love with at first sight) approval, but she can't seem to get things right. Then one day, Natsumi gets a chance to prove herself to Tohjoh. Will she finally get Tohjoh's attention?

From Viz:
In order to help her father, Chiwa Takanashi agrees to an arranged marriage with the company president Hokuto Mamiya – a man she doesn’t know – at the request of Hokuto’s grandfather. Chiwa believes the arrangement isn’t binding, but her new partner seems to think otherwise. Can two strangers living together find their way to a happy marriage?!

15-years-ago Vivi, the demon, decided to leave the demon realm and come to the human world. There he found an abandoned baby and on a whim decided to keep it. Since then he lives together with Hana... but having a 14 year-old girl around you, is it really that simple?

In the spring of Kyoko's first year in high school, Eiko, a girl like a sister to her, returns with her younger brother, Jiro. The return isn't that big of a deal, but Jiro (self-proclaimed super mad scientist) has it in his head that he wants to operate on Kyoko! And, what's even more, the two of them are actually high ranking members of an evil organization on the run from the heroes of justice!
As if high school didn't have enough problems already, now she has to deal with these two living with her.

Kurosaka Gengo is just your normal highschool boy, who likes to skip cleaning duty. However, Gengo's peaceful life ends when he comes across a strange man. That man claims to be an alien and is in need of Gengo's body to survive on earth. Not only does Gengo deal with the alien, but with others that are after him!

Meet Eikichi Onizuka a 22-year-old ex-biker. He's crude, foul-mouthed, and has a split-second temper. His unlikely goal: to be the Greatest High School Teacher in the World! Of course, the only reason he wants to be a teacher is so he can try to score with the hot students. Before he can become a full instructor, he's got to work as a student teacher to earn his credentials. Onizuka may think he's the toughest guy on campus, but when he meets his class full of bullies, blackmailers, and scheming sadists, he'll have to prove it.

Note: Won the 22nd Kodansha Manga Award for Best Shounen Manga.

From Yen Press:

Monarchy ended long ago in Korea, but there are still other countries with Kings, Queens, princes and princesses. What if Korea had continued monarchism? What if all the beautiful palaces which are now only historical relics were actually filled with people? What if the glamorous royal family still maintained the palace customs? Welcome to a world where Korea still has the royal family living their lives! But for Che-Kyung, a high-school girl, this is a tragedy, since she has to marry the prince who turns out to be a total jerk!

Nao Yoshikawa stays behind to live by herself when her parents leave to inherit her grandpa's farm in the country. On the day she moves into her new apartment, she discovers that it was rented also to Hisashi Uehara--a cute, super-cool, popular guy from her school. Not only did their housing agency unexpectedly close down, the landlord of the apartment tells them that they had to pay more for their apartment than they had expected. With no money and no home to return to, Nao and Hisashi decide to live together as flatmates.

*Contains a oneshot called
Kare to Kanojo ni Hanataba wo
(His and Her Fortune Bouquet) in vol. 1:
Harumi has been tricked by good looking guys before, but what if Kazuya is different?

Behold the the struggle of the adorable little cockroach Gokicha-chan as she struggles to make friends with humans after moving to frigid Hokkaido to escape the unfortunate reputation her species enjoys in the Kanto region.

From Nagareboshi Manga:

Mao has just graduated middle school, and due to where she lives, she has to go to a different school from all her friends. While trying to find her new classroom, Mao stumbles upon a boy being bullied. She gets the bullies to go away, only to find that the boy, Riku, wasn't being bullied at all. Nonetheless, Riku respects her now, and refers to her as "Prince," for saving him. How will their relationship continue...?

1) Zenbu Shiritai
(I Want to Know Everything)
I won’t act spoiled in front of my boyfriend, and I definitely won’t trouble him, either. I’m trying to act like a cool and mature ideal girlfriend, but the truth is, I’m a persistent and annoying girl who wants to be pampered by her boyfriend! Even though I'm hiding my true self from him, to satisfy my evil desires, I’m stalking my beloved boyfriend!!

2) Sakasama Honey
(Upside Down Honey)
Kameyama Chisato is a girl without boyfriend, because of her sadistic personality. While trying to fix it by secretly practicing with a skeleton in the Biology lab, a classmate named Kurosawa Akihiro sees her. What will happen to her secret?! Will Chisato ever find love??

3) Chiru Chiru Michiru
(Fall, Fall, Rise/ Broken-hearted Michiru)
Michiru is a girl with poor luck when it comes to love. She’s been dumped several times by her boyfriends for other girls. After her latest breakup, she feels really dejected. In her attempt to get over her love, she pretends as if she's about to commit suicide. However, a boy from her school, who is rumoured to be a delinquent, stops her, and promises her that he’ll introduce her to the best guy on earth. Just who is this 'best guy on earth' and where can he be found? Or is he right in front of Michiru’s eyes?

4) Ashita Hanabi ga Agattara
(When There's Fireworks Tomorrow)
Tomoe has a dreamー to go to the fireworks display during the summer together with the guy she likes. However, she hasn’t found that spark of love at all, at least, not until her childhood friend, Miki, moves back to her school and she meets Kagami through him! She makes the perfect plan to confess to him, but that doesn’t go as well as she had hoped, when Kagami confesses to her that he really likes Tomoe’s best friend, Rikka! Is the friendship ruined between these best friends now? And will Tomoe be able to fulfill her dream of watching the fireworks with someone she loves?

5) Super✰Star
There’s a certain group of guys in Kiyoko’s class that stands out, and to Kiyoko, Hoshino stands out the most! In fact, whenever she sees him, he looks like he’s sparkling. However, Kiyoko realises that Hoshino isn’t exactly what he seems to be, when she discovers him working at his family’s run-down convenience store! But even in his dull work clothes, Hoshino is still sparkling to her. But it’s not until Hoshino is confessed to by another girl that Kiyoko truly realizes that even if she’s different from Hoshino’s ideal girl, she still has a chance… but is it too late now for her?

From Tenshi-Tachi:

Yanagisawa Aiku is the president of the flower-arranging club. In order to save her club from being closed down, she agrees to go out with Hosaka Ryousei, the extremely handsome president of the student council. However, the only problem is that Ryousei is always in love with one girl after another. Aiku is just another girl to him... or is she?

Mingyum wants to become East Asia Strongest martial artist, however, he has no Zen, which makes it impossible for him to reach that goal.

One day, he gets lost and finds a group of thugs, in an attempt to save a girl, he gets beat up. But in the heat of the fight, a blond foreign girl saves his life while claiming to be his fiancée. Almost at the same time, an accident occurs and Mingyum discovers he can use a huge amount of Zen, if only for a limited amount of time.

What will happen next?

Contains 3 short stories:

Chapters 1-3 - They'd been drunk. Or, more specifically, his boss had been drunk. So when Sakamoto jumped him, Kurahashi just went along with it. After all, it was just the alcohol...right?

Wrong!

At least, that's what his boss thinks...and said boss doesn't have a problem trying out a relationship with a colleague he thinks is in love with him. Unable to gainsay him, Kurahashi gets dragged into a relationship he never asked for - and finds himself getting deeper than he ever imagined.

Chapter 4 - Two childhood friends who abruptly drifted apart years ago are reunited. One of them is now a Buddhist monk... What does his friend feel about this?

Chapter 5 - The shy, reclusive, bespectacled Egawa confessed to Aoki on high-school graduation day...and was politely turned down. The two unexpectedly reunite in university, but to Aoki's surprise, Egawa has become a completely different person who's very popular with the ladies! But why does this cause strange, conflicting emotions within Aoki?

A regular school boy, Hikaru Shindo stumbles upon an old GO board while looking through his grandpa's old storage room for something worth money. From inside the board came an old spirit named Sai who once dedicated his life to GO. Together, Sai continues to search for the move people call "The god's hand" while Hikaru slowly began interest in this ancient game and walks down the road of GO.

Won the Shogakukan Manga Award in 2000.

Compilation of short stories:

• Kataomoi no Mukougawa
Azusa knew the boy in the library was already in love... So what can she do when she starts to fall for him?
- Which Scanlations

• Ano Kado o Magareba
It’s summertime, and Kako is sick of the heat. She is feeling restless, and she wants to find a guy to fall in love with. Kako is actually desperate enough that she tells herself that she will try to fall for the next guy to walk through a nearby doorway. Fortunately, the guy who appears is really cute! Kako doesn’t know him. Can she fall for this guy? But already, her heart is pounding…

• Tenshi ga Kuretamono
Miyuki is working at a convenience store. One day, on Christmas Eve, an interesting guy comes in and asks for job at the store. They do, but the hours are really bad (evening shift). That-disappointed-guy then talks to Miyuki and knows she's single. The guy suddenly asks her to go out with him! She feels she can't go out with a stranger, no matter how cute he is, and no matter how persistent he is, because this stranger is just a 2nd year in High Schoo!

• Bitou na Koi
Chiaki is a tomboyish girl. Really though, Chiaki is everyone’s friend, and is treated by the guys in her class as “just one of the guys.” Until now, Chiaki has been fine with this, but she is starting to fall for one of her classmates. Will he ever see her as a girl, or is she doomed to be totally not his type?
- Aerandria Scans

• Kimi to Natsu no Aizu
Hyori was forced to be a manager in the baseball club during the summer by his father who is the coach. She doesn't want this, but her friend Yoshimura is on the team, so at least she can see him. Yoshimura introduces her to the pitcher of the team, Sumida-senpai. As they get to know each other, they really hit it off. But this doesn't make Yoshimura happy...

From Midnight Scans:

Sekiya-san of the cultural library has an unrequited love for Yuuki-kun. The one who cares about Sekiya-san is the popular Kasai-kun, who is also Yuuki-kun's friend! And, what's this? Yuuki-kun is rooting for Kasai-kun?! It seems that everyone's feelings are one-sided... or are they?

Extra: Secret Garden

From JShoujo Scans

Imaginary Ocean
Doora is always talking about the ocean and claims she's a mermaid. But is she really?

Trance's Purchase
Trance goes to the slave market to buy a slave. His cousin Palfiena wonders if he'll buy a useful slave. She's afraid he might make a wrong decision. When Trance comes across a cute girl who can't speak, he'd like to buy her, much against Palfiena's wishes. She thinks he's being fooled, but Trance buys her anyway...

Kianna's Tail
Kianna is a mermaid of the northern ocean. She lives a peaceful life there with her friends, until a guy arrives who wishes to kill her.

Karen's zippers
Ever since Karen was little, she always wore clothes with a zipper.
When Karen becomes an adolescent, her parents tell her she shouldn't open her zipper in front of anyone anymore. But when Karen falls in love with Rob, he discovers the zipper on her belly and opens it??

Selma's Jingle
After a lot of strict music lessons, her teacher says she's finally a full fledged musician. He tells her to go share her beautiful music with other people.
Selma goes to neighbouring Mokumoku kingdom to play for the royal family and their guests. Everyone loves her music and request her to play more but Selma promised her master she'd only play once a week. The prince doesn't like no for an answer though, and says he'll marry her if she plays for him...

Odette is an android designed by Dr. Yoshizawa. Wanting to find the ultimate difference between humans and her, Odette decides to persuade Dr. Yoshizawa to enroll her in a local high school. Follow Odette's adventures, as she ventures through high school, in search of the true meaning of being a human!