From Art of Life:
Not long after Sakamaki transferred, he fell in love with well behaved student body president Kurihara, one day he got the courage and told Kurihara his feelings towards him. Kurihara's real motives for agreeing to have intimate relationship with him is...

From Fantasyshrine:

Volume 1:
Reiji has never forgotten Kagami, the man who cruelly dumped him 10 years ago. Now, they unexpectedly meet again! Will Reiji finally be able to let go of his unrequited love, or will his love for Kagami once again only lead him to heartbreak?

Volume 2:
Luciano met the president of a cosmetic company, Munakata, during a party and was offered to become the exclusive model for their new male product line on the spot! However, was there a string attached to Munakata’s generous offer to Luciano? Or did he simply want to get up close and personal with his new model—!?

Yamada, a kind-hearted and well endowed high school girl, comes across Takahashi, a high school teacher, who was taking a nap near the forest as he's got a lot on his mind. Lost in their own little world, Yamada helps unravel Takahashi's troubles with her soothing kindness...

From Summer Rain and Senpai Scans:

Sonokawa Tsubasa - 15 years old.
A bubbly, energetic girl who's called 'stalker' by a lot of her classmates because she chases after the guy she wants relentlessly. After getting rejected by an upperclassman who saved her at the train station, she decides to help her childhood friend, Yuri, with her job as the basketball club's manager. There, she meets quiet, unobtrusive Akkey...

A story about a video production company going to another world to film adult videos.

Aoyoma Tsukiko has always been misunderstood due to her expressionless face. Having to repeat first year of high school again due to her usual bad luck, she strives to have a happy and cheerful high school life. Then meets her classmate who is a deliberate loner. However, due to her nature, she aims to befriend him, much to his annoyance. Can a friendship grow between a poker face, cheerful girl and the loner? Can she break through his walls?

The journey of the fugitive, Elio Sanchez and the companions he meets as they get entangled in the Castilian Civil War.

Collection of oneshots:

1) Midnight Untouchables
New hire Mitsuha has an email friend “Chief” whom he met through a gay dating website. Suddenly, he has this funny feeling that his on-line buddy is none other than his boss in real life, the serious, strict, four-eyed Chief Azuchi. Thus starts a rather complicated “Love Untouchable*” (*”Untouchable” is a popular Japanese comedy)!

2) Duet (Sing for Me)
Nakamura Tsuyoshi, afraid his tone-deafness is ruining his chances to pick-up girls, decides to work with the substitute music teacher on a cure. Shockingly, Sensei’s lessons don’t include any actual music.

3) Shall We Love?

4) Please Don't Let Go of That Hand

5) Ghost?Sweet?

6) No Sweet Life

7) Under The Glasses

8) Ring, Ring Christmas
A handsome Santa wants to exchange some odd presents with his cute, but short-sighted, young reindeer.

9) Surprise Christmas
When Takahiro was 5, he got the best Christmas present ever: his Onii-chan! Thirteen years later, Takahiro wants to be his Onii-chan’s best present ever. Can he?

Am I reborn? in my previous life I was a designer who had just graduated, then one day had an accident. Adelaide, that's what's new in this new life, my life feels very boring, but suddenly there is news that there is a girl across dimensions, and decided to go to the capital. Is there something waiting in the capital?

From Tokyopop: Daughter of a brilliant professor, Asuna is a below-average student at Ecole du Ciel, where teachers and other students constantly belittle her. However, with the world spiraling toward war, Asuna's headed for a crash course in danger and love, as everyone prepares for combat...

"I'm jealous of you..."

A girl from a robot club in a wheelchair, Futagami Yui, looks up to heroes and wants to create one, so she enlists the help of an underclassman, the talented AI architect Kazumiya Reina, to build an android together. When it's almost finished and only the AI needs to be sorted out, someone kidnaps Reina. Yui curses her inability to do anything because of her legs and resolves to perform an illegal "mind copy" to save her junior...

This is the log of adolescence of girls living in a world where humans and androids coexist.

"In exchange for your life, I'll grant you one wish.""Ushiro: the Somber God of Death" is what you get when Japanese horror meets Beetlejuice! Based on a cancelled Level Five game and a series of now popular horror novels written by Gotou Ryu, the manga adapts stories from the novels as faithfully as possible.Ushiro spends his days looking for people desperate enough to die so he can approach them to convince them to die, so he can eat their souls. Despite how it seems though, he is not completely heartless, offering to grant the people a single wish to come true in exchange for it. However, much to Ushiro's dismay, an upbeat high school girl can actually see him, and on top of that she goes out of her way to convince people not to die.Being drawn together through some kind of string of fate, the two go on to meet several different people who are struggling with hurtful pasts, perverted presents and foul futures, both doing what they can to help.

Batman would marry two face in this universe.

Shibazeki Suiren is a stunningly beautiful girl. When she enters high school, most of her classmates are astonished by her beauty, but after noticing her quiet manners and lack of contact with anyone else except her friends Yuri and Aya, she receives the nickname "Takane no Hana", a beautiful flower but impossible to reach. However, after a fellow freshman called Kawasumi Kouha saves her from a persistent suitor, she finds herself mesmerized by him... as he's the only boy who won't look at her no matter what.

In a modern-day loli's home, a super handsome ancient Jinyiwei falls from the sky! Without parental care, the loli takes him as her closest person and even wants to become his bride?! Though he appears tsundere, cold, and picky on the surface, he finds it harder and harder to let go of her...

Note: Jinyiwei (in English "embroidered military guard") were secret police in China during the Ming dynasty (see Wikipedia for more).

An inexperienced protagonist and a big-chested maiden, seeking revenge...

Chapter 1-4 ; Wagamama mo Kimi no Tame Nara Ikura Demo
Playboy omega Mahiro wants to live his life to the fullest before the onset of his first heat. When Mahiro discovers that the shy, awkward alpha Yoneya likes him, he decides to fool around with him. But little by little he begins to think Yoneya's personality is attractive. However, Yoneya is the son of an elite alpha family, different from the world which Mahiro inhabits.

Chapter 5-6 ; Itetsuku Kosen
A story of friends/acquaintance of Mahiro & Yoneya

The story centers around Yuna and Akari who have two very different views of love: Yuna is someone who sees love as a dream and Akari is someone who is very realistic about her romance choices. Meanwhile, there are two boys, Kazuomi and Rio, who also have different views of love: Kazuomi’s an airhead and doesn't understand the concept of love while Rio grabs the opportunity when confessed to as long as the girl looks cute.

http://betsuma.shueisha.co.jp/furifura/

From Hoshikuzuu Scans:

Maki, a popular and good-looking dude, but a virgin. Despite his playboy looks, he believes that sex should be done with someone you like. A pure-hearted teenage boy that you rarely see nowadays. And by some accident, his classmate Miyashita found out about him being a virgin. In exchange for his silence, Maki is threatened into going out with him. He reluctantly accepts, but later discovers that Miyashita is a huge sadist.

The Tiger Grail War, Beach Edition.