From living under the same roof to then being classmates?! Ever since his parents passed away, Haebom has been living in Taesung’s house. And now, being a 12th grader, he enters the same class as Taesung, which makes the whole situation way more awkward. Living together 24/7, Taesung and Haebom's relationship is bound to change.

From MangaHelpers:

The world is in a tense political situation, and one country has instituted a new mandatory education program for all children fifteen and up. It's a half-year program that puts the children through military training. Kazuki has traveled to an installation on Yurikago ("Cradle") Island for his half-year of training along with many other boys. Kazuki has no special physical talent, but he has a remarkably good memory. His closest friend in the training, Sai, is top-notch at everything and not particularly liked by some in their class.

One day, their relatively ordinary life in training comes to an abrupt end. Kazuki awakes to find the island facility in ruins. He has no idea how much time has passed, or what has happened. Soon he meets up with Sai and a strange little girl with a cat, and they begin to try to figure out their situation. What has happened to the island, and to their country? [tethysdust]

From MangaHelpers:
The high school columnist looking for the next big story gets more than she bargained for when she digs into the wife of a man she meets. The female anime characters that the class nerd draws become real and over protective of their creator. The monster behind the old child’s story haunts the people that break the rules of the contract. These are some of the episodes in this collection of short horror stories.

A collection horror and supernatural-themed short stories.

N/A

One day, a devil appears to a student and proposes a game. She tempts him with one wish if he wins. But if he loses, she takes his soul. He begins a dangerous game with the dreaming devil in his desperation to save his sleeping sister.

Set in a parallel alternate universe.

Satan Rchimedes returns to the earth after being sealed for one thousand years by a hero. The King tries to seal Satan once again by dispatching descendants of the hero. However, it's troublesome to find the genuine descendant, so the king chooses 75 hero-like people. This is the adventure of Alba, hero no.45, and his monitoring fighter Ross.

Hoshiro, who had studied earnestly in order to impress girls with his brains, ended up in an all-boys high school! Now what? Well, it's off to the school's legendary wish-granting Tanuki Statue to pray for love! But what happens when his earnest wishes are overheard by the school idol?

From xiaojiangworld

Hibi starts working at his old school as a librarian and reunites with his former senpai, Sugino, who's now a teacher there. Although he confessed to Sugino in high school, he was told that his feelings were a misunderstanding and that he didn't understand the feeling of 'like'. Even so, Sugino now says that he likes Hibi. The feelings Hibi has for Sugino now is no longer love- it is hatred...

After alien technology falls to Earth and humankind uses it to develop giant robots with applications in industry and security, Japan and other countries create academies to train students to use them. An aspiring robot pilot, Maki Natsuhito, tries his best but his prospects in the field look dismal, not helped by the fact that his crush, Asato Kana, is one of the school's aces.

Everything changes with the arrival of Fishes, a mysterious smiling girl who offers Maki the power to fight a new alien threat, but who exacts a heavy price on the exchange. Now in possession of abilities others could only dream of, Maki will find that the idea of a hero is very different from practice.

From Chibi Manga:
Morimura Nobara, 15 years old. Because of a fall from the cliff three years ago, she can hear the voices of animals. Once she got used to it, she notices that there's a guy's voice that says 'I can hear you clearly'

A collection of horror/fantasy/supernatural-themed oneshots.

A mysterious painting of woman arrives at the antique shop Rose.

There is a certain restaurant in one corner of a shopping street near the office district. The historical restaurant, marked by a sign with a picture of a cat, is called "Western Cuisine Nekoya." This restaurant looks completely normal through the week, but on Saturdays, it opens in secret exclusively to some very unique guests. During these hours, doors in various areas of a parallel world open to allow customers of many different races and cultures into the restaurant. This "Restaurant to Another World" and its food hold an exotic charm to these highly diverse customers. This is a story of the heartwarming, once-in-a-lifetime encounters between our reality and another world, between the restaurant's customers and its owner, and the food shared among them all.

Note: Based on the eponymous light novel by Inuzuka Junpei.

One day, Kyouji Himuro hears a knock on his door. Opening it up, he finds that he is transported to another world. But his new life is not good. He has no fighting skill, no money, and no way to make food. While dumpster diving, Kyouji discovers seeds and comes up with a plan to grow his own food. However, his plans change when he realizes that these seeds grow monsters...

Inuwashi Momo, a lovely and delicate girl living with her handsome brothers who dearly take care of her since their parents death. Of course, she loves them... maybe too much...
In order to protect her kingdom, Momo acts lovely, puts GPS to track them and does whatever it takes to get rid of girls interested in her brothers like a soldier. But one day, Momo meets a boy who wants to overthrow her perfect kingdom !

The sad growing-up story of a pair of orphans dependent on each other. "I want to protect you forever and ever, because we have no other loved ones in this world"

From honyakusha:

By coincidence, college student Morimoto reunites with his former teacher, Jinno. After having a meal together, Jinno is touched by Morimoto’s home cooking, and they end up eating together almost every day! However, sometimes when they’re enjoying their meals, Morimoto will have a sad look in his eyes. Jinno may have forgotten, but he’d dismissed Morimoto’s confession in the past…