In this retelling of it's Prequel, Migawari Hakushaku no Bouken, Frederick talks about his observations of Mireille.

[Transcendence Scanlations]

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...

From Storm in Heaven:
At the beginning of the XX century, the relationship between England and Japan was strained. England wanted to extend its influence over Japan, and Japan wasn't willing to let any other culture pass its borders. Koto, though, a Japanese girl, didn't care if the people she meets have almond shaped eyes or not, or if they wear a kimono or a western dress. Actually, she is fascinated by this foreign way of life that brings so many innovations into Japan. More than anything else, it's the clothing that seems to grab her attention, as she wants to become a tailor and create dresses for women of every culture.
Unfortunately though, she's a woman, so she knows her dream will end as soon as she gets married. She will have to start acting like a noble and a respectable woman would. In fact, she is betrothed to Masaomi Kidoin, the second born of one of the most important and oldest families of Japan. The day she's told she will marry Masaomi, Koto attends a ball at the British Embassy and meets Sagitto, a half English and half Indian spy that captures her imagination and heart. But can their love story have a happy ending when the British and the Japanese are tracking down Sagitto because they want him dead, and Koto is forced to live a life that doesn't fit her?

In vol 4.: Pandora no Hako - oneshot

Nagahara Kisara can read thoughts. Miura-kun is a popular guy, apparently normal, but with unknown feelings for all... Do Kisara unveil?

When their parents remarried, Shiina gained a little stepbrother 5 years his junior, Kazuya. Kazuya is a picky eater and only eats the food prepared by Shiina, who is a chef.

But as Kazuya grows older, he became more and more distant, leaving Shiina feeling at a loss from the growing distance between them.

When Kazuya enters high school he completely change and even rape his brother!

Shiina is shocked that is little brother violated him and runs away from home.

Princess of romance, Hwi-Kyung. The handsome, wolf-like, Three Musketeer guys who run to Hwi-Kyung wherever she is.
They make a secret promise without Hwi-Kyung knowing. If one of them starts to love Hwi-Kyung, their friendship will shatter.
A no-love oath.
The prince of confidence, Yoon Suh-Rin's, charm!
Te-Ri, who became a two-timer because he loved Hwi-Kyung!
And the one who hid his love for Hwi-Kyung's happiness, the charismatic Jo Hwan-Sung's sad love story!

Hitomi moved to the countryside, and is bored, in comparison to her former busy life in Tokyo. However, that changes when she meets a certain boy...

From Go Manga:
Hani, the working woman with no interest in dating and who brags about her best trait of not being in debt has an accident with her best friend’s younger brother! The development of a youthful romance in an era where chivarly/courtship is dead. The story of Hani’s turbulent romance.

Based on a popular otome game, Hakuouki follows Chizuru and the Shinsengumi in an alternate reality. Chizuru travels to Kyoto in search of her missing father but after being involved in an incident, ended up being taken in by the Shinsengumi where she meets the members including the famous Hijikata Toshizo and Okita Soshi. Chizuru’s father was conducting government research for strengthening the Shinsengumi and developed the ochimizu. The ochimizu is a formula that gives demon like strength and regeneration effects but once taken, the user experiences extreme pain and eventually turns into a blood hungry monster. In an attempt to defend Chizuru, Hijikata takes the ochimizu and although the situation was saved, he is now affected with the illness. Okita is also forced to take the formula when his tuberculosis prevents him from defending Chizuru and himself. Feeling responsible for their actions, Chizuru must fight her feeling of helplessness and find the courage to support the Shinsengumi.

Yuuki is a girl who lies about her gender to enroll in the theatre department of Getsuryou academy, an all boys' school where all the students are required to stay in the dorm. While hiding the fact that she's a girl, every day, she tries hard to study acting, the subject that she loves so much. One day, an upperclassman, Riku, found out her secret, causing Yuuki to be very worried, but she gradually got attracted to him. At the same time, she came to know the real reason why she was brought up as a boy...

From Midnight Scans:

In exchange for Naoe-kun to stop smoking, Nina has to kiss him instead!?

From Meijinification

Matsuka Ryou is a school girl who doesn't seem to take life seriously. She dreams of growing up and becoming a wanderer or a minstrel. She's the adviser and sole member of the light music club (although it's not really a club). However when she picks up a key that a teacher drops, a whole new world is opened up to her...

In a universe where men and women are mortal enemies, Hibiki is captured by a band of female pirates. The group find themselves stranded with a super ship they dub the Nirvana and set out for the female home planet. Along the way, they discover the existence of the "The Harvest" and the possible destruction of both men and women.

The manga differs greatly from the anime, with fewer characters and focusing more on the relationship between Dita and Hibiki.

A girl with a love who happens to be from a long time ago.

"Wedding Theme" is a historical romance, the setting is same as that of the "Romance of The Three Kingdoms." This manga creates a entirely different image of Zhou Yu who is portrayed more as a bad guy in "Romance of The Three Kingdoms." But, Zhou Yu is dashing, handsome, and young when he meets the heroine of this manga...

3rd chapter of Otokonoko ni Toriko

Kyouko has always been alone. Her parents are always at work and she has no friends around her. One day, she found Lucifer who claims to be the Prince of the Underworld in a garden. After being rescued by Kyouko, Lucifer has decided to stake his claim on Kyouko as his wife. But why is Ishii-kun, the guy whom Kyouko confessed to suddenly wants Kyouko for himself?! (from Midnight Scans)

Our main character Sena is a girl who's parents pass away leaving her with two siblings to support. Thus being a high-school student she works as a maid for money. So what will happen when she finds out that the person she's working for is actually Souma, a boy who seems to have a hidden side?