From MbE: In college, Naoto has an unexpected reunion with ex‐boyfriend Taichi who he broke up with for claiming their relationship was for sexual release only. Naoto has been carrying this old resentment, but little by little his heart is starting to forgive Taichi, who has really grown compared to their time in high school…All the while, their friend Fumi‐chan seems to have fallen in love with Taichi…? As friends, they have extraordinary compatibility, but turning it into love isn't going too well. A scar‐covered love story!

A series of mysterious murders without injury are happening in Tokyo, how will Kumoi Soutarou react to them? A Oneshot from Miracle Jump!

From Hoshikuzuu Scans:

The story tells of a stubborn young master and his loyal servant. Because of their statuses, their love story is at the mercy of fate. Aoi is the heir to his family, but due to some discord between him and his stepmother, he is forced to leave the house. And there to support him is his childhood butler, Miyauchi. After living his days being doted on and served, Aoi finds his position reversed, where he has to work all day. And what has supported him throughout this lifestyle is his unrequited love of 5 years for Jirou, the heir to the Saionji family, a leading automobile maker.


Vol 1-2: Kashikomarimashita, Destiny
Vol 3-4: Kashikomarimashita, Destiny ~Answer~

From Must Be Endless:

Story 1 (ch01-02)
Read this while praying for the fate of two people, a BL that will save your soul. "You will be my other half." Having infiltrated a religious organization to save Lief, who adores the cult leader, Catholic priest Ross is instead captured and held captive. "If you become my other half, we can both be saved," Lief believes blindly. Giving Ross a drug which dulls his senses, Lief then rapes him. Believing in the precepts of his faith, Lief pities Ross and convinces him to resign himself to accept this relationship, but... A dramatic story about a young cult follower x a Virgin Mary type Catholic priest.

Story 2 (ch03-04)
Collected together with the following magnificent stories: A discarded houseplant that becomes human... Do I recognize that face? And a mysterious couple.

After the death of his grandmother and only remaining relative, Shinakawa Raizou moves in with the mysterious Mitou family as their housekeeper. He soon learns the Mitou family's secret: the Mitou can use great power with only their words. But because this power harms the body of the user, the Mitou pair up with human-like paper dolls to transfer their wounds to them through bodily fluid contact.

--------
Ze 2012 extra
Ze gashuu iro no hon - Artbook

The manga follows "another Alice," a female high school student who curses her everyday life. When by chance she loses her way on the "Borderroad," she is forced to participate in deadly survival games with other female high school students. [ANN]

Yukiteru "Yuki" Amano is a loner who never really interacts with people and prefers writing a diary on his cell phone with his imaginary friends Deus Ex Machina, the God of Time and Space, and Muru Muru, Deus's servant.
However, Yuki soon learns that Deus is real when he makes Yuki participate in a battle royal with eleven other people. Within this "Diary Game," the contestants are given special diaries that can predict the future, with each diary having unique features that gives them both advantages and disadvantages.
The rules of the game are simple: the contestants have 90 days to find and kill all the other contestants, and the last one standing will become the new God of Time and Space

A girl finds her friend has been possessed by the ancient spirit of an American Indian warrior, who has been involved in the deaths of numerous presidents.

From Evil Flowers:

1-3) Hana wa Knife o Mi ni Matou
Kako Saeki is a senior in high school. She has been modeling and harboring her love for her favorite art teacher, Enjoe. Her heart breaks when she finds out that her love is actually engaged. Now, Kako's innocent love takes a dangerous turn when she finds out who he's engaged to...

4) Yori-chan's Feelings
An insight of how Yori-chan, Kako's big sister, is thinking.

5) Beautiful World
Near the Ipson village, if you venture into the forest, you’ll meet a lonely demon. If he talks to you, he’s going to tell you your fortune, but don’t expect it to be something good. This demon has been named by the villagers “the insulting fortune teller”. One day, a beautiful red-haired girl named Alice becomes this demon’s friend. He doesn’t want to look into her future, but he might need to…

When the black blade roars, all who stand in its path shall be torn asunder…! What is it that Koinzell, the mysterious young boy who wields the sword with such exceptional skill, desires? The fight against the “Lances of Betrayal,” who were thought to have been defeated by the Seven Heroes, begins--And at battle’s end, only the shocking truth will remain amid the pools of blood.

If you've ever had a guy steal your girl through the use of a squid-related judo move, this oneshot will definitely speak to you!

It straddles the line between being comedic and just plain odd. If I had to give it some deep meaning, I'd say it speaks to the futility of life. Sometimes the bad guys just win, and the good guys get embarrassed.

A collection of short stories.

1-3. Shiiku Hime
Takanezawa Hime is a girl from a wealthy family. When she was small she started bullying Asakawa Nachi. Under Hime's guidance she wants Nachi to become her ideal pet. And thats why Nachi always obeys Hime's commands.

4. Junai Koza Kemono Shiyou
The protagonist has to teach to a boy who was her childhood friend when they were little but now the boy turned into a beautiful guy and rather than studying he prefers...other things!

[From Forever More]: Saku, an assassin, believes his life is meant to be lived by the sword. After a night of brutal killing however, he is left wounded and helpless in the hands of Shakou, a mysterious doctor, and the only witness to his crimes. Fate seems to have ordained this encounter as secrets are broken and emotions run wild...

From Sweet Lunacy:

A few years ago, when walking home from his usual late-night hang-out in Shibuya, Kouta stumbled on a street-fight. A ragged-looking ice-cream vendor, with the company of a foreign young man, when cornered by thugs, managed to knock them out as easily as swatting flies. As time flew by, Kouta made friends with these peculiar men. But even so until now, he remains clueless of who they really are, where they came from and what lies behind their relationship and their hidden pasts....

Lovely manga anthology on love and sex, plus a bit of humor for female readers. This book features all the stories of female characters falling love with her senior students. Includes 6 works from 6 authors: 1) "Zakuro no Mi wo Abaite" (Opening Pomegranate Fruit) / Mayu Shinjo : Prideful Kotoko is greatly admired at her school, but will that change when ruthless Takahiro backed by a powerful family sets his eyes on her? 2) "Sexy Shiyouyo!" (Let's Do Sexy!) / Yuuka Kousaka 3) "Jun-ai Egoist" (Pure Love Egoist) / Mio Ayukawa 4) "Netsu-ai Byoutou" (Love Fever Hospital Ward) Yuka Murata 5) "Wagamama na Kuchibiru" (Selfish Lips) / Haruko Kurumatani : Yuu gets a job acting in a commercial with popular idol star Kano Itsuki. When Yuu works up her courage to introduce herself, he kisses her! What does she do but punch him. 6) "Double Face -Akogare no Senpai Hen-" (Double Face -Senior Student Version-" ) / Kai Uchuuda

When a boy appears out of nowhere in your room claiming he was a succubus, what do yo do? Shimizu, the Fallen Angel, knows the answer.

A story about an insecure succubus and a sadistic Fallen Angel.

Akino's been in the advertising world for a while, and has been successful. But when younger man Kurata is chosen to team up with him on a project, he wishes it was anyone else. Kurata is always challenging Akino and criticizing his ideas. Why is Kurata so hard on Akino?

Collection of 6 oneshots:

1) The first story takes place at school and is about a wild, slacker seme and his over-protective uke.

2) Ore to Kareshi to Aitsu to Kare
A story of bestfriends who gets along very well. The other even gets to see his best friend have sex with his boyfriend every night. A funny and somewhat sad story.

3) A story of a man who married a woman who's 10 years older; a story of this man and his stepson, to be precise.

4) Kajou na Aijou
Kenji has moved in with a college friend, but didn't know what he was getting into. Tatsurou regularly 'punishes' him for 'shortening their quality time together'. Looking to make a little money to help pay the bills, Kenji gets into trouble at the local host club and has to be rescued.

5) ?

6) Fathomless Cage
A brutal rapist/robber and his victim.

Ogata, a serious salaryman, is said to have a blemish free life throughout his school years and into his working life. He was an honor student who would pay attention to his surroundings and without exception, would not allow for prejudices to be made as he believed that one’s hands should be extended to save the weak.

His co-worker, Ayase, feels irritated by this. His hatred becomes stronger as Ogata waves his ideals of justice over his head. He uses a new employee (and prostitute) recruited by the company’s president, named Kamiya, and devises a plan to deceive Ogata.

A man who wants to get rid of the unavoidable darkness that resides within him.

A man who has no choice but to be a bystander to his parents’ fate.

A man who discovers love and hope in a life where he can’t find a purpose to live.

Punishment, grief, emptiness…each ivy overlaps and entangles. Just when flowers of different color show…a dark and gloomy garden will surely leave a new seed in your heart.