From Winter Translations:

This is a story about a pair of twins who're, undeniably very different from one another. Big brother Shuuya and little brother Yuuta are basically light and shadow...

Rika is known to be a cheerful girl, but is that her real self?

Hime Arikawa is a high school boy with a huge debt, and he is saved by the girls of his school's student council after being chased down by yakuza debt collectors. The student council agrees to pay off his debt if he'll join the student council and spend his high school life cross-dressing.

By all appearances, Sakura and her friends are normal, albeit sheltered junior high school girls who enjoy talking about love and walking home from school together. However, they also happen to inhabit a strange and supernatural world populated by mysterious, gigantic beings and unusual plant and animal life. Amid their peaceful lives, Sakura becomes very interested in something only alluded to exist in an old book: dicks.

A collection of stories:

• Otonari no Senpai
• Fuwafuwa no Kimochi
• Hajimari no Kotoba (also in Kirakira no Natsu)
• Hon no Tomodachi
• Mainichi no Tomodachi
• Christmas no Yoru (The Night Before Christmas)

In the casual days of the spring of his third year in middle school, Mitsuru Hibino meets transfer student Kouzou Issha, who develops his special power. Issha commands Hibino to use his lethal “power” to “correct the errors of this world”.
Their first step is to “kill those who drive while using their cell phones”. While getting their hands dirty with what society considers “crime”, these boys use their “power” for their “ideal justice”.

From Hearty Thrills:

Meguna Hirasawa has confessed 5000 times in total to her 10 year long crush Ayumu and in turn, received 5000 rejections. But that won't stop her. In fact, Meguna is retiring from simple confessions and moving to a whole new level. That being said, Meguna is ready to dive straight into seduction! Wait, the first thing she does is smash her lips into Ayumu's face for a bloody kiss?! Will her pestering finally allow her to capture Ayumu's heart? Or will this desperate girl's hard work be in vain?

From Chibi Manga:

You can't compare me to the perfect sister! I don't know any sister but when I entered in a far away high school something happened...

Collection of one-shots:

Chapter 1 - The Unripe Fruit
Chapter 2 - Notice My Love
Yoshihara has again bumped into Hoshina, his high school kouhai. Once, when they were both drunk, Yoshihara slept with Hoshina. Since that time, Yoshihara realized that he loved Hoshina, but unable to tell Hoshina his true feelings and unable to withstand the pain of a superficial relationship, Yoshihara distanced himself from Hoshina……. Aside from the titular story, this masterful anthology includes such short stories as “The Unripe Fruit” and “That Is the Name of the Flower You Cherish,” stories that are brimming with Narazaki Souta’s storytelling charm!!
Chapter 3 -That Is the Name of the Flower You Cherish
Chapter 4 - Pierce Me with Your Gaze!
Chapter 5 - HEAT ART BOYS

Shirahama Kenichi is a book lover who has just entered high school, but he is often bullied by others. One day, he became good friends with the new transfer student, Fuurinji Miu, who was also looking for a friend. Kenichi was shocked at how powerful she is at first, but he is still somehow attracted to her...

The unbeatable high school badminton player Hashiba Leo started this game all because he wanted to become popular with girls. However, the truth is harsh and all the girls he liked rejected him for guys in other sports clubs. After his 15th confession failed, he was about to give up on badminton. An adorable girl showed up all of a sudden. Her admiration for Hashiba made his badminton spirit come alive again.

An adult body, but childish heart. Heartrending, but sweet. A somewhat bitter high school love story.

The story begins when a suspicious cult called the "Confusion Cult" enter the town. The god they worship is in fact a baby. The red-haired protagonist of the manga named Ann attends the school that the cult founded, and even though she is not popular, she is still loved by her friends. As she continues to rebel against the cult, the door to a mysterious world opens.

From Senpai Scans:
Takamachi Moka has been away from school due to a lung illness for so long, she has to repeat a grade. Stuck in the first year while her friends move on in the second year she eats lunch alone until a boy with a cat falls down next to her?

Teranouchi Bon is an average teenager except for one thing: his imagination. As a virgin, he uses his wild and vivid imagination and envisions himself in a sexual relationship with Ichihara Ibuki, one of the heroines from one of his favorite TV shows from when he was a child. Bon finds out that one of his new schoolmates is the beautiful Momose Koharu, who he used to be childhood friends with, and his life soon becomes chaotic. But just when Bon thought life could not get crazier, his world is turned upside down when he learns that the new school nurse is none other than Mitsuba Touko, the actress who played Ichihara Ibuki, his imaginary lover.

Jun is a girl whose words have been sealed away. She was once a very happy girl, but because of a certain thing she said when she was very young, her family was torn apart. One day, the egg fairy appeared in front of her and sealed away her ability to talk in order to stop her from hurting anybody else. Since this traumatic experience, Jun lives in the shadows away from the limelight. But, one day, she is nominated to become an executive member of the "community outreach council." On top of that, Jun is also appointed to play the main lead in their musical...(Source: Official website)

Since long ago, a bitter rivalry and feud has long existed between two clans, the Toujo and Toyoda families. Because of this feud, it has long been Kanade's job as a shinobi to ensure the safety of Keigo, a member of the Toujo family, ever since childhood. Her devotion to her duty as a guard is a source of contention for Keigo, who would rather have her as a childhood friend than as a protector.

Of course, this protection extends all the way to school, so when Kanade comes across the Eishi Toyoda in class, the heir to the Toyoda family, she is initially hostile. After an attack, Kanade soon discovers Eishi is not exactly who she expected, and that threats to Keigo's safety do not just exist from the Toyoda family but within the Toujo family itself.

A chance meeting blossomed to love between two girls.
But it’s quite a peculiar couple: Sayuri is ordinary in every way, while her love interest, Yoriko, is a refined lady who seems to be completely lacking in common sense. Graceful attraction between two very different personalities, a sweet and slightly dazzling love story.

Kaju is a normal boy. But his life changes when he is reanimated by a necromancer who wants to conquer Japan. Whatever will happen next...

After being reformed by the GTO, Eikichi Onizuka, the Twins of Terror, Riko and Miko Sakaki, leave their past behind and become members of the Disciplinary Committee at their school, Chigasaki Kahoku Private Academy, helping fellow students in need through an SOS messaging system. When an illegal prostitution auction ring is uncovered at their school, the twins set out to restore peace to their school and punish those responsible.