Kyuukyoku Venus manga

From Viz:
After young Utena's parents die, she wanders the streets. Just as she's about to drown herself, a prince comes to her rescue, telling her she must grow up to be a brave noblewoman. From that day on, she strives to become not a princess but a prince. Years later, she receives a mysterious rose-crested ring in the mail. Will she meet the prince again? 

Takanezawa Hime is a girl from a wealthy family. When she was small she started bullying Asakawa Nachi. Under Hime's guidance she wants Nachi to become her ideal pet. And thats why Nachi always obeys Hime's commands.

4) Jun'ai Koza Kemono Shiyou
The protagonist have to teach to a boy who was her childhood friend when they were little but now the boy turned into a beautiful guy and rather than studying he prefers...other things!

From Attractive Fascinante:
Volume 1:
1-3) Take Care about Neighbor
Togawa is quietly living his life when neighbor, Tone, seems to come rushing in. Their chance encounter in the hallway and then mixing up the mail seems to bring them closer together. But how close is too close?
4-7) Pursuing the Realist
Jade Muto has moved back to Japan after years of living in Italy. Best friend Yuusuke Mikami takes him to lunch, where Atsurou Miyazoe serves them lunch. But Jade wants to be served more than just lunch. With a little help from Yuusuke, will Jade be able to win the heart of Atsurou?
Volume 2:
Tone is back with more ways to satisfy Yuki-chan! And with the new editor-san, do we get to see more this time?
Volume 3:
V3 continues from the couple we saw at the end of V2, the editor, Takatou, and Yuki-chan's classmate, Dai-chan. "Do you want to sleep with me?" A light joke with only a tenth of true intent from Takatou, Dai-chan actually agreed to it. Will Takatou really do it? A cameo of Mikami and Rui in the extra.
Volume 4:
Tone and Yuki-chan are back! With the appearance of our new rival, Heath, will Yuki-chan waver? What would Tone do to take charge of his Yuki-chan? Dai-chan was taking care of the sick Takatou when he gave him aphrodisiac instead of cold tablets. After a night of torturous fun play, Dai-chan got sick instead. What would be the destiny of Takatou when he gave aphrodisiac to Dai-chan out of revenge?

Plot: Nene, whose mother is known as a legendary hostess, is also working as a hostess. Meanwhile, a guy, who has his father's charisma, made it as a newcomer actor. When they meet, love starts.

Nene has been a hostess for 3 years in Ginza, and she tries to struggle for her to be called the legendary hostess like her deceased mother. One day, a man suddenly called her. Even though it's their first meeting, Nene starts feeling deja vu. Since then, the two of them have to tamper with a cruel play. Is fated love about to begin?!

Juuna's uncle gets her to enroll in the school where he's principal. The only problem is that it's an all boys school! With all those rabid guys around, Juuna needs someone to protect her. In comes Shibuki to be her bodyguard...but Juuna wants him to do more to her body than just guard it!

A Japanese girl is sold off to a South American business tycoon, who takes her away to this foreign land. Here, he seduces her, and the two slowly fall into a love trap. But while this occurs, another force interrupts the two's love-web. A violent revolution ignites within the country and the two are soon separated.

Volume 1: Target in the Finder (Finder no Hyouteki).

1) You're my Loveprize in Viewfinder (1st part of the main series, Viewfinder; 3 chapters : You're my Loveprize in Viewfinder, Fixer & an extra, Embrace the Heat of the Night): During a routine journalism assignment, freelance photographer Akihito Takaba is captured by the mysterious Asami, a powerful leader in Japan's underworld society. Asami forces his captive to undergo a night of pleasure and pain never before imagined...

2) Love Lesson (1st part of the Love Lesson series): Ichijou saved Sakurai from a pervert on the bus on the way to the school. But his own intentions were not so pure...

3) Loving Plant (Koi wo Suru Shokubutsu) (1st part of the Koisuru series): Sports stars, Hiyama and Mizuno, find themselves caught up in something bigger than they first imagined when they go out to find out whether or not their fathers are really gay.

4) Risky Society: God Bless My Justice (stand alone) : A rookie to a society of people with supernatural abilities must prove himself (and his love) to his superior.


Volume 2: Cage in the Finder (Finder no Ori)

1) Body Chase (main Viewfinder series; 1 chapter): Takaba helps out the police by infiltrating Asami's flagship club, Sion.

2) Splendor of High Rises (Kourou no Hana) (main Viewfinder series; 4 chapters): the story of Feilong and Asami's first meeting, seven years prior in Hong Kong.

3) Loving DNA (Koi wo Suru DNA) (2nd part of the Koisuru series).


Volume 3: One Wing in the Finder (Finder no Sekiyoku)

1) Naked Truth (main Viewfinder series; ch1-5: The Japan arc): Feilong returns to Japan, setting up an explosive situation that will take him, Takaba, and Asami across countries to resolve the events set in motion seven years in the past.

2) Love Surprise (1st part of the Love Prize series): A light oneshot side story to the Viewfinder series taking place New Year's Eve with a very drunk Takaba.

3) Baked Sweet Glasses (stand alone): Cute underwear salesman has his heart set on making a tough sale.

4) Koi wo Suru Baby Leaf (3rd part of the Koisuru series): The story of how the fathers met.


Volume 4: Prisoner in the Finder (Finder no Ryoshuu)

1) Naked Truth (main Viewfinder series; ch6-10: The Hong Kong arc).

2) Takaba's Wonderful Day (2nd part of the Love Prize series): Asami sees photographer Takaba on a shoot and takes him on a drinking date. Another light sidestory to the Viewfinder series.


Volume 5: ?

1) Naked Truth (main Viewfinder series; ch11-13: ? arc).

2) Naked Truth - Zero (main Viewfinder series).

3) Takaba Akihito's Graceful Summer Holiday (3rd part of the Love Prize series).

4) School Ghost Story (Gakko no Kaidan) (2nd part of the Love Lesson series). 

From ShoujoMagic: A collection of naughty tales published under Sho-Comi's Pink Label.

From Viz:
What happens when an all-girls' high school reigning tomboy finds out her school is about to be filled with boys!?

Hanabi Oozora is a rambunctious 16-year-old tomboy who comes to the rescue of her less assertive friends--sometimes in exchange for food. So what does she do when, all of a sudden, her all-girls' school is about to be integrated with an all-boys' school?!

She meets and falls in love--naturally--with one of the three most popular and handsome boys in the Student Council, Yasuaki Garaku! Unfortunately, Yasuaki doesn't care for girls...and when the girls' Student Council clashes head-on with the boys' Student Council, Hanabi steps in to become a member - hoping she'll change Yasuaki's mind!

"On that day, I became the enemy's possesion," Nakaba thought as she stood there, knowing her destiny was to be married for convenience to keep the peace between her country Senan and Prince Caesar's country, Belquat.
Between the two countries there has been a constant war for 200 years and Nakaba has become a sacrificial goat for her country despite the discrimination to her red hair and to the 'sub-person' (half-human, half-animal) Loki, who is her only friend and attendant at Caesar's estranged palace.
But what will Nakaba do when she foresees an event pertaining to Prince Caesar's demise? Will she save him? Or let him die in return to all the hate directed towards her by the people of Belquat?