Girly boy Pil-Hyun Jung, also called Teddy Boy, strives to become a real man to win the heart of the girl he likes. He needs help becoming more manly so he becomes an apprentice to the author of a manhwa series about a pretty boy who wants to be a man. As Pil-Hyun works to overcome his problem, his love interest likes someone else, he gains a crazy stalker girl, and the women he lives with are all scary in one way or another. Will life ever go the way he wants it?

Kim SooHyun is an ordinary high schooler who isn’t good at studying, fighting, or being attractive. Suddenly, he’s faced with a quest window right in front of his eyes. After being given the powers of a game [system] out of nowhere, how will our hero confront the challenges ahead of him?

From the Animeraider:

What the world of course needs is a 4-Koma about a group of girls who play RPGs!

In a deserted place, wish upon coins, then laugh loudly three times, your wish will come true... The carefree and outgoing Eu Hee secretly likes a girl; however the person she likes is another senpai. If this isn't ridiculous enough Eu Hee decided to help her confess to her crush! A sweet and light-hearted tale, the Mi Sa-Lyn's first oneshot after her Debut.

From the author of the NTR series "1/10 no Hanayome". Read it with that in mind

From Tokyopop:

In the era of the Romance of the Three Kingdoms, the fall of the Han Dynasty in Ancient China, a strange boy Qwan and his winged companion Teikou are on a quest. In order to find his purpose and the truth of his existence, Qwan is told that he needs to find the holy text, the Essential Arts of Peace. During his journey, he sucks in the body of demons, apparently as his meals. Will this super-strong demon eater locate the texts and discover his destiny?

Very few people know that one of the country’s leading erotic novel author is 15 year old Akutagawa Taketo that has just entered as a freshman at Hirameki Academy. Unlike regular high schools, this school only accepts those who are accomplished or geniuses in their particular field, ranging from authors like Taketo to mathematicians or musicians. Taketo feels comfortable being in the presence of other brilliant minds but is afraid that his talent might project as him being perverted. Is Taketo going to be able to keep his secret?

It was the most amazing wedding...

From Shoujo Crusade:

Riko Mitsumi is sixteen year-old girl who is pretty and a good student. She would be like most girls if she wasn't constantly dreaming about sex and using a pseudonym to write about it.

Transylvania Rose is a bored angel who descends to Earth to clean a few souls. When she witnesses a depressed undertaker slitting his wrists, Rose rips off one of her wings and gives it to the undertaker, trapping them both somewhere between heaven and hell--and life and death!

In Ome, a city in northern Tokyo, the adventures of four different characters of different mentality and cultural background will take place. The only common interest they share is their love for sports and parkour. The heroes are four children that destiny brought together to enable them not only to help each other but also to achieve their personal goals. Tension, competiveness, humour, friendship, intrigues and lots of parkour are the main elements of the world of R.u.N. Are you ready to Remember ur Nature?

Recently graduated Suzumura Rikako was still jobless when her older sister insisted that she apply to the company that she was working for. It sounds really great except for the part where that company is an erotic game developer. Rikako has yet to embrace her sexuality and add to that her shy personality and you have a recipe for disaster. But with all the employees, from the designers to programmers to advertising, being cute females, maybe Rikako won’t have such a hard time making this her career, or maybe it just might make it even more awkward.

“R“ or rather Room 402 is the room where our illustrious female main character lives. One day which seems to be by mere coincidence her fate intertwines with that of Sasamoto, a savvy man who seems to be down in the dumps. That is until he picks up a trinket which fell from her nether regions. Prepare yourself for a story of sexual psychological horror as Sasamoto enters into a brave new world.

From Tokyopop:
The story of a detective who becomes involved with a young boy with telekinetic powers and his violent sister.

The manga's main characters are featured in another series by the mangaka, FAKE, as supporting characters in Vol 3-5.

A story about a rabbit girl named Shiro and her owner.

The Author made many ntr doujins

Rabbit Foot is a oneshot about a treasure hunter from the sky who recruits a passerby to help her look for a treasured doll located in the world below.

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Source: japanzai

Housemaid Hee-yeon fullfills the master's orders perfectly. Neat posture, perfectly done household chores, special spirit of service. An unfortunate and beautiful housemaid comes in a complicated family. Hayangji + Youngmo comes back with a new elegant work. Twisted scandal in a mansion started by dangerous woman Hee-yeon.

The story of a man who brings good luck and those who get carried away. Jung WonHo, an office worker who spent a normal day, accidentally saves Ji TaeWoo from a car accident. WonHo is attracted to TaeWoo, who saw the accident as a chance to approach him, and now the two are getting closer...

From Evil Flowers:
A compilation of 6 sweet stories about finding love and learning how to keep it.

1) Karada no Iinari by SAKOU Watari
Uika Tonoda and Kuniyoshi Hazama are very experienced when it comes to sex….in theory at least. They know every theoretical term about sex, pheromones and all sorts of things related, yet neither of them has ever experienced it for themselves. What will happen when these 2 meet? Will they be able to leave the talk aside and finally take action?

2) Oni Kare by TSUKISHIMA Haru
Wakaba Endou only wishes to finish her driving lessons soon so she can get a driver's license. Although she thought it will be easy at first, nothing is easy when the one who's teaching you is instructor Kenzaki. He complains about every small mistake that she does and won't give her any points in her lessons unless she does them perfect. Wakaba always complains about the fact that he's so strict, but at least he's good looking.

3) Himitsu no Kinchan! by IWASHITA Keiko
What would you say if you knew that objects can fall in love? Kin-chan is the most popular mannequin in a clothing shop. Everyone wants to wear the clothes she's showing and even though she's just a plastic doll one day Haruto saved her from falling on the floor when she was pushed by the many enthusiastic customers. Even since then Kin-chan is not like the other mannequins because she has fallen in love with a human. What will she do when Moai-sama will grant her the power to be a human for 3 days?

4) Shuuren by MONOU Yuki
Nishimura Inori (17 years old) has given up on being girly after enrolling into an all-girls school. Since they barely get to see any boys, she and her classmates are so to called “boy hungry”. Yet still, they kinda gave up on the idea. They end up going to a very boring school trip to Nara and are pleased to discover that in the neighborhood inn, there is another class renting the place at the same time, from an all-boy school. So, this is it, the girls last chance to seek love before going back to school.

5) Rabu + Kuro Love&Clothes by TADA Manami
Matsumi Katou is a normal 25 years old housewife. Lately her husband has stopped complimenting her and she's spending most of the time taking care of her child and never to take care of herself. When she hears that she'll need to go to a party together with her husband she realizes that she's got nothing more formal to wear. In her search for a piece of cloth that will fit her she ends up at Aoi's shop, a manager who puts the happiness of the client before the job to sell any cloth to anyone. Will Aoi manage to make Matsumi look beautiful for the party?

6) Himikoi ~ Time Limit by Robiko
It's her last semester of high-school and Mako realizes she hasn't done anything memorable in all her time spent here. So she starts skipping classes together with Yoshi and ends up spying on other couples instead of leaving her own love story. But love comes in many forms and even tough Yoshi doesn't seem to take an interest in her she's still determined to have her high-school romance memories, even if that means forcing him to date her.

From Yen Press:

Rejected by the girl of his dreams for some guy named Moriya, Kazunori Akabane is royally ticked off when he unknowingly collides with his rival in the school hallway. Unexpectedly, the accident warps Akabane and Moriya to a magical realm full of wizards, princesses, and monsters! But much to Akabane’s chagrin, the key to the classmates’ survival in this world is…the exchange of their bodily fluids! Can Akabane ever get used to the idea of swapping spit with a guy?!