From Storm in Heaven:

Kyu's greatest desire is to become a detective. To fulfill his wish, he goes to take the entrance exam to get into the detective school run by Dan Morihiko, one of the most famous detectives ever! At the exam he meets Megu, Kinta, Kazuma, and Ryu as they all try to pass the grueling three-part exam. Kyu wants to solve mysteries, and he gets his wish: his first real case appears in the midst of the exam!

An Onmyodo School Fantasy of a Failing Private Onmyo Academy Student!!
Tsuchimikado Harutora was born into a prestigious Onmyoji family, but he can't see "spirit energy". Therefore, he's been enjoying a peaceful daily life with his friends at an Onmyo branch school. One day, his childhood friend Tsuchimikado Natsume, heir to the head family, suddenly appears. Will this cause his destiny spring into motion!?

Oneshot from issue 5 of the yuri magazine Galette.

From Yen Press:

Shouta Yamakawa is in love with manga…and the 2-D girls in it! So when a casually uttered wish to have the lovely, frail Sora Nagihara-his favorite comic heroine-by his side comes true, Shouta can’t believe his eyes! But he quickly learns that while this Sora is just as cute as the one in his comic books, “frail” is the last word that comes to mind for her personality! She’s one bold, brutal babe, and she’s ready to bring the world to its knees for him, her new master?!

Failed on his job-hunting, shut-in Sagara Kurohiko went to the mountain on the day of a typhoon where he is struck by lightning and dies. But he is still alive, in a strange land with a great holy tree. To his surprise, his physique has rejuvenated to when he was teen. Brought to the academy near the tree, he is soon suspected as a spy from another country, and was brought to the headmaster. An accident happened on the way, which enraged the headmaster. Before Kurohiko can get blasted by magic, his eyes laid upon an old parchment. He took it and read the contents. Suddenly four holes appeared and black chains came out from each of it, binding the headmaster. It is then revealed that Kurohiko just recited an incantation of "Forbidden Art," an art which is extremely powerful from a legend. Apparently, no one has been able to decipher the contents of the scroll, which makes Kurohiko the only current Forbidden Spellcaster. Sparked by this, the headmaster offers Kurohiko to attend the academy.

From MangaHelpers:
One day, Serizawa fell asleep at work and had a dream about a past love that he wronged when he was in middle school. On the way home, he was involved in an accident, and a woman who knew him called for an ambulance. Now the woman has his phone number, but he doesn't know her identity. Serizawa thinks back over the women he has loved in the past, trying to determine who this woman that has re-entered his life is.

Kang Chan and Seyeon have been close friends since they were young after being introduced by their parents. After entering high school, Seyeon suddenly received a confession from Kang Chan and became aware of Kang Chan since then. Meanwhile, Naeun is displeased with their relationship. The trivial and noisy story of their love triangle and those around them...

The plot is a monster who came from the future to change the past. One woman must be removed to change the past. The name of the target to remove is Jung Eunji. In order to approach Eunji who is a hero, Tae-gwu is also a prospective hero. Will Taegu remove the threat and change the future?

A story about a new enthusiastic teacher, Naoki Sakura, who took up his new job in all-girls high school! He became the homeroom teacher of the first years, but the girls in the class contains full of different personalities. He declared to these girls "I want all of you to love one another!" Will he and his students be able to build a teacher-student relationship with that goal!?

This school is known for its football club Ranzan, a refuge from the head of the largest departments. To avoid disbanding the club, the manager using the new football coach: Tetsuo Kuroki. He will choose to form teams with the strongest students. And indeed, four of them come to integrate the school. Among them Shingo Narita, a student is turbulent but not a bad person who does not hesitate to fight to defend his colleagues. When he proposed to join the club soccer, a sport he practiced a few years ago, his enthusiasm took over. Through sport, Professor Kuroki will teach them that there are other solutions that come from a single blow.

In the year 21XX, robots are a typical part of everyday life. Even in this world however, Mono-1 is quite the oddity as the newest model of Robot. Although her intelligence is at the level of a child, her creator designed her to grow through observation, and leaves her in the care of his son, Morohito, to help her find new experiences to learn from

Summary by amoxi:
A new big beautiful guy is transferred in Hoshino's class. Wait! He's Ichinose, the troublemaker of middle school. At that time Hoshino has written a love novel between Ichinose and his new stepbrother. When the novel was discovered by a classmate, they make fun of them and triggered Ichinose's wrath. Then ichinose transferred. Maybe was Hoshino's fault? And now he's back!

A collection of stories:

• Hot Gaze in the Cold Weather

• C.5 - The Love Relationship between Mai-chan and Ecchan

• Madder Memory

High school students Kamijou Haruta and Homura Chika are members of a wind instrument club that is on the verge of being shut down. The two are childhood friends and they spend their days practicing hard, while also trying to recruit new members. When a certain incident happens within their school, they work together to solve it.

(Source: ANN)

From Dan of Population GO:

In a world where girls who have turned into an "Eternal Labyrinth" endangers the world, only one person doesn't want to kill them. Arisu Shinnosuke hates society which revels in those who kill the labyrinth diseased girls. Only he strives to find the cure and reverse the disease all in order to save his little sister, who turned.

A girl stranded in a small lakeside village deep within the mountains, Mitsuha, and a boy caught up in the oddly orderly chaos of bustling Tokyo, Taki, begin to dream of another, unfamiliar life. Before long, they realize that they aren’t dreaming at all, but actually switching bodies. Separated even further apart than they ever would have imagined, yet still somehow inexplicably connected, they search for the truth behind their strange phenomenon and discover what really happened on that fateful night when the stars rained from the sky.

From Omari's Sister:

"Pika Ichi" is the story of two painfully shy teens who love yakuza movies. An incident at school pushes them over the edge, and they decide to drop their mousiness in order to dispense some "justice."

The romantic relationship between a naive yankee girl and a boy with seemingly no common sense.

Lee Wee Jin has to cope with his tyrant sister on a master-slave basis everyday. Trying to fool himself he evades reality, thinking she's tsundere and that she really likes him. Suddenly, these delusions become all too real.