From Manga Art:

Ichinose Hime is the daughter of the Prime Minister of Japan, and because of this, she has been unable to lead a normal school life. Hoping to hide her title and lead a normal high school life and get a boyfriend, she moves to a high school far from her old school. However, after going through all of this trouble to cover up her identity, a boy named Kirihara Natsuno finds out her secret. Unfortunately for her, he isn't so willing to keep the secret if she doesn't pay up. Will Hime get to live out a normal high school life as she had wished, or will it be a repeat of history?

1-3) A student, Fukuoka, finally tells his feeling to his classmate Amano. But did Amano really hear it or not?

4-6) Tired office worker with acrophobia finds someone who is going to committing suicide on the roof of the building. He takes the guy to his house and becomes intimate with him but can't accept his love. Then the guy suddenly vanishes and our hero climbs up the building to find him again...

After experiencing tragedy firsthand, Amagi Souji does not feel that he is deserving of love or of loving anyone. It is not until a strange girl appears before him wanting to learn just what love is that he finds himself caught up in a battle between female warriors known as "Ark Processors." Will he learn to feel love again and will he be able to teach her what true love is?! Only time can tell!

From Fujoshi Bitches:

Beautiful college student, Yonomori, is secretly enamored by his underclassman, Hinohara. He’s a really cocky junior, but sometimes, Hinohara touches him as if he were a precious jewel and makes his days full of heart-wrenching hope. And on one of those days, he is shocked to learn that Hinohara has a person he likes. Even while being plagued with hesitation, Yonomori goes to Hinohara to inquire about the identity of that person. But in exchange for an answer, Yonomori is to become...?

Various short stories by Kaoruhara Yoshie revolving the theme where the male leads are carrying a secret!

The story picks up from where the previous dj Overload left off. Hikaru and Yuki have been in a relationship for 5 years. Now at 24, Yuki has progressed to become a high school teacher. He thought Hikaru and he were doing well in their relationship but...?
Part of Rules / Hydra Series

From Yaoi Desire Revolution: Nao, the introverted prodigy of the department, trembled upon hearing the handsome Kouji, who has an inseparable relationship with him, discussing his problems. The thing is Kouji is an ass “hunter” who can’t stop feeling sexual arouse when seeing beautiful ass❤ After devouring almost all of the girls in university, he began hitting on Nao, who has a beautiful round ass despite being a man! This book includes the following stories: 1) The Cafe Called Love 2) Suki Dakara Itte Hoshikunai 3) Urge to Molest 4) Spring Comes to the Cafe

The special focus on the meeting of Shishio Makoto and and his significant other, Yumi Komagata.
The manga also details how Shishio formed the Juppongatana, his organization of warriors and assassins that he recruits in an attempt to overthrow the Japanese government in the original Rurouni Kenshin manga.

Yukie grows up in the countryside in the 1930s as a daughter of a well-off family plagued with dark secrets. Surrounded by people but without any real friends, she tries to come to terms with herself and learn what love is.

Uno was bullied when he was in elementary school. Even after many years, he can't forget it. Suddenly that bully, Okada, shows up at his work as a patient. Uno is surprised to see him, but it doesn't look like Okada recognizes him. Is he still the same as in the past? What will Uno do when Okada asks him to date him? Will Uno be bullied again or will he finally get revenge??

Tomoyuki's story continues in chapter 5 of Asanaga Fuugetsu, Shodouka Desu.

A young woman returns to her grandfather's village where long ago she met a man afflicted with the "curse of the dragon."

1. La Campanella - Two co-workers and their uncertain relationship.

2. Love's Magic Word is... - A gaming enthusiast tries to confess to his long-term friend.

3. Saturday, Boy, Phenomenon - A reunion between two classmates: the guy who was outed in high school, and the "best friend" who outed him.

4. The Sorcerer's Apprentice - "All the neighbourhood ladies tell me to stay away from that house where the crazy gay guy lives. But I'm a girl, so I guess it'll be safe for me to pay him a visit now and then."

5. Cu, Clau, Come - A gay guy cooks meals for his straight friend several times a week.

6. Once Upon a Time in Tokyo - Tokyo: where country people go to leave behind rural life, with all its close-knit relationships and painful first loves...

7. Je t'aime, cafè noir - In a small coffee shop somewhere in the city, five customers coincidentally come together. Two of the employees there also get involved, paving the way for four mini-dramas to ensue.

In the lonely center of a lonely, snow-laden forest lies a small cabin where two witches dwell. A meditation on their love, hatred, and loneliness.

In return for a business loan of 50 million yen, the prestigious Kamiya family gave their daughter Haine away to the Otomiya family. Haine, now an Otomiya, is appointed to the student council of the exclusive Imperial Academy, a private school for the aristocracy. Even though Haine is of proper lineage to be on the council, she finds herself struggling to find her place among the many secrets of its elite members, especially those of the president who holds her heart - Shizumasa Togu, aka "the Emperor."

Haine has been in love with Shizumasa Togu from the day she read the picture book he wrote as a child. She enrolls the Imperial Academy to be close to him and is accepted as a member of the student council. But with that, dark secrets start to reveal themselves! Why does "The Emperor" act differently? Is Haine really in love with Shizumasa? Why did her father sell her and why doesn't her mother write to her anymore?

Includes the following extra stories:

• Kusame and Komaki and the Key of Love in vol. 5
After Komaki confesses and Kusame accepts unwillingly, Kusame tries to break up with her, but how?

• Shoujo Eve Ringo Jikake no 24-ji (Eve's Applework 24 Hours)
"Kawaii”... Eve has come to hate this word. "Kawaii" has ruined her life and made her a social outcast. Yet she still has hopes Niikawa will return her feelings for him, that is if the rowdy class idol Kashii doesn't spoil everything first!

• Umi no Sakyuugi Yasoukyoku (Nocturne) in vol. 11
Searching for the meaning of people's lives is the mission that is given by God. The reason for my birth... It's okay if it was just to meet you that night.

Two prisoners managed to escape after the police truck carrying them crashed on the highway. One of them , Mr Sawazaki is a gangster who has sent 10 different bosses to hospital. The other called "You" - our protagonist - is a con artist whose cheating profile has piled up to approximately 100 billion yen. Accidentally, "You" then becomes the new teacher for the nearby high school, under the new name Takeda Shindo, and according to a deal of "Hammer Session" with the headmaster.

Are you single? Are you an otaku? Would you like to buy a "wife"? Do you fantasize about eating, having fun, shopping, and sleeping with her? Can you promise to take responsibility and love her for a lifetime? Would you use your life to pay for a contract? A fantasy that belongs only to you; a maid that belongs only to you.

By Finger Scans:
Lang Lang, a 15-year-old Korean girl, got adopted by the Freeman family in England, when she was three years old. With a big donation from the Freeman family, Lang Lang got accepted into the prestigious 'IDOL' high school. The school is very famous for its smart, famous, and rich students. Lang Lang's step-brother, Ian Freeman, has never accepted Lang Lang as his sister, and even though he's the school body's president and the head idol, as he excels in everything he does, he decides not to help out when his biggest rival, Choe Jang Gun, targets Lang Lang.

Police Detective Nagai is living with his friend from high school, Kitahara. The stiff and uptight Nagai was never particularly close to the spaced out Kitahara, but after a chance reunion, Kitahara ends up moving into Nagai's place, saying his S.O. had kicked him out. Although Kitahara's a slob, with his cooking skills and snuggly demeanor, Nagai develops a soft spot for the guy. But, his happy cohabitation with this house-pet-housewife comes to an end when Kitahara suddenly announces that he's getting back together with his 'ex-boyfriend'! And Kitahara has a lot more skeletons in his closet......

from Renta!

From ADV Manga:

On the planet Aqua, a world once known as Mars, Mizunashi Akari has just made her home in the town of Neo-VENEZIA, a futuristic imitation of the ancient city of Venice. The technology of "Man Home" (formerly Earth) has not entirely reached this planet, and Akari is alone, having no contact with family or friends. Nonetheless, the town, with its charming labyrinths of rivers and canals, becomes Akari's new infatuation, along with the dream of becoming a full-fledged gondolier. Reverting to a more "primitive" lifestyle and pursuing a new trade, the character of Akari becomes both adventurous and heartwarming all at once.

From fictiondb:

She was a pawn to be used as he liked.

And in the circumstances, Eve had no choice but to go along with the pretense set up by Max Nilsson's schemes.

A rich man's lover--or a loving daughter trying to shield her family? Eve knew very well which was her real self. Only by cruel coincidence the man being baited by Max was the one man whose good opinion Eve really longed for.

And Carl Ramsay believed that she was a heartless gold digger. With the evidence stacked against her, winning Carl's love seemed hopeless ....