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 Years later, haunted by her past experiences, she has long withdrawn from modeling.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...

Maki lives with a family thats very dependent and demanding of him. He finds relief with Tasuku, a young looking man who cant seem to do anything himself. Being more than happy to help Tasuku out, as he is finally given a thank you for his efforts, he easily falls for the younger looking man. Things are happy between them until Maki learns just who Tasuku is, and then misadventures ensue. Two side stories are included.

From Mangascreener:
In a different world than the one we live in, a world where Japan is the lone superpower of the world, there is a wildly popular game show called the National Quiz. Every night, people dreaming of riches, fame, vengeance, and happiness compete on the show, for the chance to be granted a wish, any wish they have: the National Quiz has the power to make your wildest dreams come true. It also has the ability, if you lose, to make your life a living hell.

This is the story of K-i K-ichi (aka prisoner KK47331), a former actor-turned losing National Quiz contestant-turned wildly popular host of the show, and the people and events surrounding him.

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?

From Tokyopop: Nanaki survives a car accident to discover he is psychic. Recruited into an organization that solves cases with psychic powers, Nanaki's average life quickly turns into one of adventure and intrigue. Slacker Nanaki Shunsuke's life is turned upside down when he's hit by a bank robber's car and later meets a strange boy who claims that the accident caused Nanaki to develop psychic powers and that he is required to join LOCK, a paranormal investigations agency or be the suspect of any and every suspicious case that turns up. (thought a summary and categories were need since there weren't any :P If your into Shonen it's a good read :P Sirenic Griffin){Corrections by Silvermagic}

1-3) Blue Grey Dream
After the failure attempt of eloping with his customer, Shiki (Purple Ghost), a male prostitute, gave up his hope for love… until Ootori-sensei came along. Will Shiki finally find what he had been looking for…!? So what if there's a huge gap on their social standings, what's so wrong about living and loving for the moment? Enjoy this forbidden love story in the red-light district.

4) Untied Heartbeat
Shinobu and Washizaki parted ways in the most terrible of circumstances and after the many years that have passed, Shinobu is still scarred by the incident. When Washizaki returns to Japan and seeks treatment for cancer at Shinobu's hospital, Shinobu must face his past and find a resolution to the difficult feelings he's hidden deep inside.

5) Heartthrob Prince
Noriaki, a normal Japanese high school student befriends transfer student, Zeid, a prince from overseas. As Zeid accustoms himself to Japan, Noriaki, although frustrated with Zeid's broken Japanese, finds the prince increasingly more charismatic and charming. Can Zeid charm his way into Noriaki's heart, and ultimately, his bed?

1) I'm Not Your Steppin' Stone
Construction worker Sakai Kazuya is a 23-year-old man in love. Unfortunately, the object of his affection is the younger sister of Ezumi Masashi, an 18-year-old elite whose house he has been working on. In order to dissuade Kazuya, Masashi lies that his sister is only interested in high achieving men. Masashi offers to tutor Kazuya so he can pass his senior high school exams, but will Kazuya be able to afford his extortive price?

2) Tell Me You Love Me
Masashi's classmate Saitou tries to get between him and Kazuya because he deems Kazuya as being an obstacle to Masashi's success.

Extras) Break Time
Saitou starts dreaming during class.
A Day with the Stupid Couple I
A Day with the Stupid Couple II

3) Lovely
Kazuya insists on taking the exams despite the fact that he is no longer interested in Natsuko. He bans Masashi from seeing him till the exams are over but then Masashi sees Mogi Kousei pulling Kazuya's pants off?! (features Mogi Kousei from Kawaige)

4) Marshmallow Honeymoon
It is summer and Masashi wants to go on a holiday with Kazuya but the latter has work lined up so he can afford the new air-conditioner.

From Nakama:

Kaibara Yousuke is a third-year college student looking for employment. During his second year, he'd immediately rebuffed his classmate Nakayamada Kazuki's offer: “Won't you have sex with me?” But that time, Kazuki's declaration of, “I could make you feel so good, you wouldn't be able to think of anything else,” was the beginning of their relationship. At first, Yousuke would shy away from sex, but he was healed by the unexpectedly tolerant Kazuki, and was gradually captivated.

A small intense boy, Fei, suddenly appears in front of Masaki who just got dumped. But why does he lick her tears?

Jinny is a famous model with those gorgeous long black hair but little does everyone knows that she is in fact actually Ahjin, a high schooler who has short hair, wears glasses and only does modelling for the sake of her uncle! Ahjin has a crush on Dohoon, one of the coolest guy in school. But when Ahjin (dressed up as Jinny) found out that she'll be living in the same apartment as her crush, she's thrilled! But how can she keep her secret from Dohoon, whom he himself adores the model Jinny!?

Haruka is a owner of a dog; however, the dog is no ordinary dog. He is the wildest boy in her high school. What exactly is their relationship...?

The fate of the world rests on one man's shoulders. Or, to put it more exactly, it rests on his balls.
In a freak sealing accident the Queen of Terror is sealed into Satou Kohta's balls, thus preventing her from reigning destruction on the world. However, a lesser devil, the incompetent horned tsundere loli Elyse, has been sent up to Earth to release the Queen at all costs. The only way to do so is to make Kohta ejaculate, and Elyse only has 30 days to do it.
The battle for mankind has begun, in Kohta's pants.

1-4.
Asagami was kidnapped and found himself on board a yacht when he woke up. The one who appeared in front of him was his kouhai, once a beautiful and gentle angel, Fubuki. “Senpai never came to look for me after graduation. So I want to make you mine even if I have to do it by force.” After saying that, Fubuki did everything he could. He’s so obsessed with Asagami and even put aphrodisiacs into his food. Will Asagami give in?

5. How to Raise a Boy (Side concerning the secretary who appears in chapter three)
Super elite secretary Sagaya has a clumsy side to him, and when he accidentally bumps into Haruna he feels guilty that the boy is fired. Taking the boy in is the least he can do, but his feelings for his adorable houseguest are getting more complicated by the second...

6. I Am Loved
When his teacher/lover breaks up with him and gets transferred to another school, Takase doesn't give up, and secretly transfers too. Handsome student Tanoue is interested in Takase, but will he be able to capture Takase's heart away from sensei?

From Attractive Fascinante:

Shijima Rui, a potter, and Ubukata Toriko, a cram school teacher, finally got to live together. Just like any newly-wed couple, because of their different backgrounds and lifestyles, they had to learn how to accommodate each other. Learning how to take care of a baby and getting their families' recognition were also the challenges they needed to face. But how would Shijima going to prove his love for Toriko when they met with a new love rival?

Included stories: Ore x Yome: Himekawa is 26 years old and has a beautiful girlfriend who wants to remain a virgin until she's married. He's lied to her and told her that he has a career with a company when in fact he works at the local convenience store. Ashamed, and wishing to power up his career so he has a shot at actually marrying his girlfriend (and her virginity), Himekawa replies to a want ad and is surprised to get an immediate response. Gyakushu no Ore x Yome: Kou's very good with computer science and robotics, but not very skilled with the opposite sex. He has a crush on his coworker, Moe, but he hardly even speaks to her. Then one day, his 99 year old self from the future sends him back a present; an android of Moe that only wants to make him happy. His future self comes along for the ride, in the form of a little phallic robot. His new penis-bot and android girlfriend are definitely going to make his life a lot more complicated.