From Tokyopop:
Yayoi, a spunky high school girl, has inherited spiritual powers from her mother, and she uses these powers to protect people. During a fight with the devil Ura, Yayoi's power turns the devil into a black kitten. Now, even though Ura doesn't hide his desire to "eat" Yayoi's power when he gets the chance, they develop an interesting relationship: the two begin living together, and Yayoi takes her new feline "friend" on her adventures.

From Aerandria Scans:

The kingdom of Gulba is racked by rebellion against its young prince. A special guard has been formed to protect the realm against the rebels. They are led by Captain Carla, the Beast Tamer. And her "beast" is tall handsome Hazel, her aide and bodyguard--and the only one she trusts. Vowing to avenge her father's death at rebel hands, Carla rescues Hazel from a circus to raise and train herself. The rebels have stepped up their attacks, there's a traitor in the guard ranks, and now Hazel is acting strangely. Can she really trust him after all...?

From Nagareboshi Manga:

Chieri (Cherry) was living an ordinary life, until her sister Ichigo (Strawberry) suddenly left her child Momo (Peach) on Chieri's doorstep. Momo is an infant; how is Chieri supposed to take care of a baby while still in high school?! To make matters even more frustrating, two guys are fighting for Chieri's love...?!

Based on a real story which was posted on 2ch, Molester Man is the story of how Molester Man is mistaken for a stalker by Miss Understanding, and how they overcome their personal challenges while slowly growing closer to each other.

Ichijou Kei is the son of a famous and powerful family. He's disgusted by everyone always sucking up to him, even teachers. But new Sensei Hayashi Satoru isn't interested in Ichijou's family connections, in fact he doesn't seem to like him at all!

Three stories featuring an element of voyeurism - one man observing the object of his affection.

1) Mitsumete Itai (I'll Be Watching You)
Chief Yamaguchi, a middle-aged married company manager, meets up with carefree motormouth Abe Kazuki once a month for dinner and sex. But each man secretly longs for greater intimacy. Over time they do become close, but the Chief's transfer to America and family problems threaten to ruin their fragile affair.

2) Ore ga Iru Kara (Because I'll Be There)
High school student Yagi is caught making out with a girl by Karino, senior member of the rugby club. As the school bad boy, this is no big deal for Yagi - especially since he and Karino weren't friends in the first place. But when the tables are turned a week later, Yagi must summon the courage to be a hero.

3) Yume no Hate (The End of a Dream)
John, a jaded male escort, has dreams of being with Chris, his aloof agent. How can a client's run-of-the-mill filming request drive these two professionals apart?

1) In the End, Love is Your Own Doing
Inuzuka is known as the eccentric prince of the school's chemistry room. His classmates always stayed away from him because they see him as a weirdo. Although one day, class committee member, Akai, is requested by the teacher to "Please get along well" with Inuzuka. However, Inuzuka's interpretation of "Please get along well", turned out to be "Please go out with me" and hence begin the high school love comedy!

2) Princes of Chemistry
The continuation of Inuzuka's and Akai's relationship!

3) Mitsugetsukei Honey
Who is this person that blankly states that he will have Takumi for "takeout"?
- From Forever More

4) Younger Man
Story of Miyabi from Mitsugetsukei Honey and Yui's younger brother, Jun.

5) Junsui Yori Mo Aimai Na
More Impure than Pure

6) I Don't Just Want to Be Cute!

1) The Superior Made of Honey
The handsome hope of the Sales Divison, Ichijyou, discovers that his superior, Supervisor Kirihara, has a body which is too erotic. Since Kirihara hasn’t had sex for the last 10 years, he is agonized by a body reacting to the slightest touch. “This is my first time with such an erotic body... Amazing... It's like the whole body's an erogenous zone.” While Ichijyou is being caught up by the innocent reactions of his supervisor, he is already drowning in that lusty body?! (from Blissful Sin)

2) The Secret Love Potion For You
High school student Itsuki has been despondent since his lover Kouji broke up with him. Classmate and chemistry whiz Kamiya Yuuichirou is determined to help Itsuki by developing a love potion! But is Kouji really worth all the effort?

3) Hunting of the Butler
Young president Tsukasa is always sexually harassing his butlers, and so they always quit. So when charming and surprisingly innocent new hire Mijima Shinichi takes the job Tsukasa decides to take his time seducing the young man. But the task is proving to be difficult...

4) Limit of Endurance
Continuation of Hunting of the Butler.

5) Love Started From the Sea
Drifter Riku relies on men to support him, but has trouble being faithful, which is why his latest boyfriend has kicked him out. Wandering the streets he meets handsome foreigner Gilbert who wants Riku to be his wife for his week-long visit. Unfortunately, Gilbert isn't as easy to manipulate as Riku thought. Has the young hustler finally met his match?

6) He Who Loves Horror Films
Tamura would do almost anything to spend time with his friend and secret crush, Ono. Even go to see the horror movies Ono loves so much. Too bad Tamura is such a scaredy cat. Tamura must try survive the film long enough to enjoy the time with his beloved.

7) If the Lid Was Opened
A continuation of A Superior Made of Honey.

A rumored girl seems that she can't graduate unless she takes extra classes and also pass the examination test with a 60. She thinks that there's nothing to do in the school, but while studying....she finds....

This is extra story can be also be found in the manga, Chocolate Christmas.

1) Mimitabu no Riyuu (A Reason for Earlobes)
Yamaguchi is a notorious womanizer. Some men admire him; others can't stand him. Ishikawa is definitely one of the latter. Nevertheless, when Yamaguchi's latest girlfriend dumps him, Ishikawa jokingly offers to comfort him with his own body. Unfortunately for Ishikawa, Yamaguchi takes the offer seriously. And, to make matters worse, Ishikawa discovers that he can't say no!

2) Yubisaki no Biyaku (Love Potion Fingertips)
Ishikawa and Yamaguchi are dating, but Yamaguchi's lovey-dovey behavior makes Ishikawa sick. Hoping to put Yamaguchi in his place, Ishikawa suggests that they "see other people." But things take a turn for the worse when each one catches the other with a beautiful woman.

3) Kuchibiru no Teppen (The Top of the Lip)
Ishikawa usually wears an irritable scowl. So why is he laughing and smiling so happily? Is it because he likes homemade sweets... or the cute girl who made them? Consumed with jealousy, Yamaguchi's patience is pushed to the limit.

4) Tsumuji no Mannaka (The Center of the Hair Whorl)
Ishikawa's nightmare is in danger of become reality. His boyfriend, Yamaguchi, is trying to win over his family! Fearing for his future, Ishikawa forbids Yamaguchi to visit his home, but Yamaguchi is determined to get close to the Ishikawas, one way or another. If Ishikawa won't accept him, then maybe Ishikawa's sister, Hitomi, will...

5) Ushirosugata no Natsu no Neko (The Summer Cat Turns Its Back)
After bad news from the doctor, a man reminices about a young man he went to school with, but then young man appears and he hasn't aged...

Extra) Te no Hira no Ue (On the Palm of Your Hand)

The son of a famous pianist, music student Shinichi Chiaki dreams of studying abroad and becoming a conductor like his mentor. Unfortunately, his fear of flying grounds his lofty plans! As he watches other classmates achieve what he has always wanted, Shinichi wonders if he should quit music altogether.
Then one day he meets fellow student Megumi Noda, also known as Nodame. This oddball girl cannot cook, clean, or even read a music score, but she can play the piano in incomparable Cantabile style. And she teaches Chiaki something that he has forgotten: to enjoy his music, no matter where he is.

Winner of the Kodansha Manga Award for Shoujo in 2004.

Keidai Saeki is a high school student who remembers his past life in Pompeii, living as the Italian warrior Sirix. His friends around him are all also reincarnated - although they don't quite remember things the way he does. Keidai's wife from the past? She's now a middle school boy - while his best male friend is now a cute girl?! Throw in a case of love at first sight, and you have a new look at romance - manga-style!

From HMR:
This is the sequel series to Sexy Simpleton, but don't worry you won't be lost! Eun Bi, the popular CF model, is back in modern times with her ancient Chinese boyfriend. Yet the adventure's not over yet, as she's transported back into ancient China. Will she manage to find the shoes that can bring her back?

Sakuya used to be a fearsome high rank vampire until he fell inlove with Atsumi. Now, he's fallen so low that he can't even drink other people's blood because only Atsumi's blood suits his taste. The problem is, Atsumi is not only a guy, but also a vampire hunter... Their love is more than just complicated, it's a game of life and death for them both!

From Tokyopop:
Dabin Choi is the daughter of Seoul's most powerful crime boss, and daddy's little girl has the hots for Eugene, the son of one of her father's 'friends'.
There's just one problem: Eugene isn't into Dabin. In fact, he thinks of her more like a little sister. (The kiss of death!) To make matters worse, Dabin's new classmate is none other than the son of her father's long-time rival. Soon, everyone at school begins playing power games that would make their fathers proud!

Poor Yuzu is an orphan who's too clumsy to hold a job. She's reduced to living in a playground -- until a handsome stranger named Hassaku informs her that she's heir to a fortune, and whisks her into a world of wealth, power, and more hot suitors than she can shake a scepter at! But there's a catch: Hassaku must turn this klutz into a lady of refinement, or Yuzu will lose everything!

Also included in this manga is an extra story called Naughty Honey:
"The boyfriend I made in college cheated on me."

When she caught her boyfriend sleeping with another woman, Kayako Ueno broke his front teeth... and it will cost her a hundred-thousand yen to repair them. So she takes a part-time job as a home tutor-- for playboy Haru-kun.

[From Enchantment Scans]:

Natural Angel is a series of three oneshot stories in a sequel to the popular series Angel Lip.

Story 1 - "Natural Angel" : Natsu, a fashion model, struggles to find satisfaction in her line of work. Just as her self-esteem hits a new low, a mysterious lipstick called "Angel Lip" appears before her, boosting her confidence in herself as a model.

Story 2 - "Milky Angel" : When she was young, Sumire made a promise to a childhood friend to succeed as a model. Years later, haunted by her past experiences, she has long withdrawn from modeling. Then one day, an old friend comes back into her life. Can Naoki convince her to return to the world of modeling?

Story 3 - "17-Seventeen" :Moe thought her relationship with her popular schoolmate Gou was over for good. But things have a way of surprising you...

Oneshot from Sono Kuchibiru, Itadakimasu

Miku and Natsume have always been fighting with each other until Natsume suddenly asks Miku to pretend to be his girlfriend!!! At first, Miku is quite opposed to the idea, but slowly… This mismatched couple, of a super tall guy and a girl often mistaken for an elementary student, fall in love.

From Shoujo Crusade:

Kyouka, a sixteen-year-old, will be a winner today, the first day at the new school to which she has just transferred! She will definitely get a great boyfriend and say her goodbyes to those lonely days!! Kyouka has two brothers who love her a lot. Every guy who comes close to Kyouka is kicked out by them, thus she has no boyfriend. But she finally found an ideal prince... or that's what she thought. This guy, Maki, is actually a perverted prince!?

* Also includes two short stories in volume 2:

• Nanisama?! Oresama
Satomi loves Yuuya a little too much and is totally wrapped around his little finger. But, if this continues, instead of becoming his girlfriend, she'll forever remain his gofer. Will Satomi do something to find out exactly where she stands with Yuuya?

• Ijiwaru wa Kuchibiru
During Shiori's fifteenth spring, she fell in love with the idol Shuu Kitamura. She was even lucky enough to get to meet him in person, but she realizes he's nothing but a fraud! However, due to certain circumstances, Shiori becomes Shuu's personal assistant!?

Arisa is a former yankee [delinquent] who changes her ways to gain the attention of Ren, a studious boy. Her efforts finally pay off when Ren asks her out. She's supposed to be really happy now that she has him as a boyfriend, but for some reason she can't stop thinking about Issei, her next-door neighbor. What happens when Issei forces Arisa to be the lead vocalist for his band? Arisa has to decide: who does she really want to be with?