From Peccatore Sanctuary:

Newbie manga editor Hatori Sekima has always admired the well-known shoujo mangaka Honda Yuki sensei, hoping one day to work with Honda sensei. But when Sekima finally gets the chance with work with Honda sensei, he discovers that this Honda sensei is not the cute girl he imagined, but a handsome man who seems to be 'interested' in him immediately...

1) The Reason I Take One Step Forward
Young couple Hirota Naoki and Yoshizawa Hiderou have a dog-and-owner relationship, with Hirota always taking care of the clumsy Yoshizawa. But when Hirota gets sick at school and tells Yoshizawa not to follow him home, is there anything "the dog" can do to be helpful to his "owner"?

2) A Rare Look Into the Incompetent Seme

3) But I Love You for all That

4) Tic-Tack

5) When the Snow Accumulates

6) Centimeter Rhythm

7) Jikosaiten

8) Sangatsu no Tobira

9) Hakoniwa no Tokiwa

10) Kataomoi Nochi Renai Naka, Tokidoki Ueno Sora

Story 1 - Don't Say Any More, Darling
The only thing keeping Tadashi, a struggling song lyricist, alive is food handouts from Kouhei, a successful doctor. In fact, Tadashi has been leeching off of Kouhei for practically their entire professional lives.
Before they arrived at this queer living arrangement, they once enjoyed a little fling back when they were in high school. Though the affair ended briefly afterwards, they've remained fast friends still. But Kouhei's parents want nothing more than to see their son settling down. As Kouhei is pushed ever more forcefully into an arranged marriage, will he finally admit that he sees Tadashi as something more than just a friend?

Story 2 - My Eternal Sweetheart
Sir Arthur, a teenager, has immune deficiency syndrome. He can never leave his house because of all the bacteria outside, thus he feels eternally bored. So to satiate his boredom, he asks his brother to make him some sexdroids to have fun. But, his restless boredom still remains...

Story 3 - Fairyland
"Because humans had become so foolish and indecent, God punished them by erasing them from the Earth."
It's been a month, and there was no sight of humans except for himself. Sawada Ryohei thought he was the only one left, until he spotted a bespectacled boy. And it turns out that, this fairytale wasn't a good one.

Story 4 - One May Day (Josei)
A professor went to a restaurant one day, and it wasn't that good. But the little things about the owner(?) Sachiko, like her pretty forehead, made him a regular there. Little things can change everything.

Story 5
A young, beautiful, talented pianist. That's what he was.
No longer is he young; No longer does he have men in lines just waiting to embrace him. Because he indulged in his one-time fame, he neglected everything else and now has become any regular bearded Joe.
Now in his 40s, he just wants his strike in love! But does he still have it

Mimaru is no ordinary garbage collector. He's a badass ninja who uses trash and other disgusting items to defeat his enemies. He also protects the unprivileged people in his surroundings.

Kazamatsuri, a modern, well-developed city renowned for its burgeoning greenery and rich Japanese culture, is home to Kotarou Tennouji, a high schooler least privy to the place’s shared values. Content to fill his pockets with frivolity, the proud and nosey boy whiles away his time pestering the self-proclaimed delinquent Haruhiko, and indulging in his amorous feelings toward the oddball Kotori. Equipped with the superhuman ability to permanently rewrite any part of his body to multiply his strength or speed, Kotarou is naturally drawn to the supernatural. One special meeting with the lone member and president of the Occult Research Club, the “Witch” Akane Senri, leads to Kotarou reviving the Occult Club by recruiting Kotori and three other members: the clumsy transfer student Chihaya, the strict class representative Lucia, and the unassuming Shizuru. As Kotarou unveils hidden secrets of each member of the Occult Club through their shared adventures, he will inevitably encounter a fate that only he might be able to rewrite. [Written by MAL Rewrite] Rewrite: SIDE-TERRA is the manga version of the Rewrite anime.

On the school rooftop rumored to be haunted by the ghosts of twins, Shuji Yashiro meets Roku Ichinose, a popular boy Shuji always thought of as belonging to a completely different social world. Unable to take his eyes off Roku’s face, Shuji takes his picture on impulse. The following day, while organizing old photos in the clubroom, Shuji finds a shocking photograph that unexpectedly brings his world a little closer to Ichinose's...

College is filled with boys in love. Kina, a college student, and the graduate student Megumu, have become sex partners. Will miscommunication and break up cause these two lovers to finally realize their true feelings? On the other hand, Megumu's assistant professor, Shibata-sensei, and fellow assistant professor, Kikugawa-sensei, seem to have been more than friends for many years. A lovely older couple versus a newly established couple - let the love begin.
from AF

1-3) The Wounds Those Fingers Touch
A fateful encounter between two ice skaters with drastically opposed styles and personalities leads to unexpected consequences. Alex Tsutsumi can’t seem to forget Yura Haruomi’s so graceful performance on the ring.
(Story in 3 chapters: Aspire - Incubation - The Wounds Those Fingers Touch)

4) Solitude

5) Koi ni Naru Hi

6) Enchainement
Kariya has always known that his position as a servant will keep him from being with young master Louis. But Louis isn't about to let it stop him...

Original doujinshi

From Yes_Rhade:
Maki is having a difficult winter since he has moved to a town that is prone to snowfalls. During one of his usual falls, he meets a young, sad man, Kotaki, who always places flowers near the train station. One evening, Maki hears Kotaki say "One More Day". What does this mean? Can Maki do anything to help?

As a child, Chiyoko loved chocolate, and loved her dad the chocolatier even more. But after he suddenly disappeared, she grew up detached and cold, and now hates the taste of chocolate. Her dad’s old chocolate shop still stands, and as she passes by one day she notices that it’s reopening under the same name, selling the same homemade chocolates. Not only that, but the new chocolatier there is a girl whose name is also Chiyoko! Can this new Chiyoko bring back some warmth — and chocolate — into our Chiyoko’s life?

1) Why is it This Painful?
Chiaki found out that her boyfriend had another girlfriend besides herself, and she ended their relationship while they still loved each other. A few years later, Chiaki meets up with the ex, Konishi, but she already has a boyfriend!

2) That's Not Love
Hirobayashi-senpai breaks up with Minako, and she complies because she's hopelessly in love with him, but that doesn't mean she's going to give up on loving him so easily. Her underclassman Shimanuki isn't going to give up on her just yet, either.

3) Sweetheart
Tomohiro breaks up with Kana, and she thinks she's okay, thinking that she could easily replace her feelings for him; but after deciding to act like nothing happened between them for a while, he comes back the next day and wants to walk home together, and they become just friends.

4) I Just Want You to Be With Me
Story involves a girl named Mami who initially believes that her relationship with her longtime boyfriend has gotten boring. To make matters worse, this cute guy at her workplace kissed her out of the blue one afternoon, which got her questioning her "love" for her boyfriend even more. So the classic thing happens... they break up. But is that all there is to it? She didn't love him, right?

5) Holding Hands (Joining Hands)
Hitoshi-kun has a secret girlfriend, whilst having and official girlfriend that he's been dating for two years. Will the secret girlfriend be okay with being second in his life?

Maki is an ex-model who now works as a waiter for a shop that opens as a cafe during the day and as a bar during the night. How he comes to work at such a place is the story.

A strange act by a young girl leads a boy to learn about the world and adulthood.

Oneshot from Swimsuits Fellows! 2009 anthology.

Moretsu Ataro is one of the four classic gag manga written and illustrated by Akatsuka Fujio. However, of the four it is probably the least popular. However, Ataro is also of the four slightly more plot focused than the others. While episodic, major changes to characters do happen throughout the series, one such that happens early on, and contributes the main premise of the manga, is the titular Ataro's father, Batsugoro, dies. However, his ghost is still remaining, as to assist Ataro in running the family's vegetable stand and protect it from various thieves or other antagonists. Aside from the main plot side characters also get a decent amount of time spent, such as Nyarome, a talking stray cat, whom would later become more popular than even Ataro and appear in some of Akatsuka's other works.

The serious Ito and the child-like Nishi meet by chance during a single player game of “White Line Game” on the way home from school.
Falling in-love, Ito gets frustrated over the fact that they only get to rendezvous on the white line and suddenly kisses Nishi.

From high school, college and then to adulthood… A deeply moving work depicting the lives of two men who are madly in love with unchanging feelings within changing realities.

From Shinmakoku Scanlations :

Ever since Nakayama was taught about work by his capable superior Asaka, he has fallen madly in love with him. He's been chasing him until he gets into the same office. However, Asaka has become a strict, cold and violent superior...! So Nakayama begins his days of getting beaten up...!! (Even though that's quite a turn-on in its own way!) But actually, Asaka has a certain secret that makes him afraid to fall in love...

Joey thought that he can avoid fights by transferring to another school. But what he doesn't know is that by meeting Elaine for the first time, he'll experience what it's like to be in love with your enemy.

[From Fujoshi Bitches]

The sun always sets in the west.

Handsome Nishino Taiyou is an architecture student, but he can't finish designing his own house. In the shadow of the smile of the cheerful but poor Nanno, the room they share is slowly filling with love. But old wounds seem to be keeping these two from reaching each other...

From DrMaster: Meet Pam Akumachi, an energetic 13-year-old junior high student who has just turned into ...a little devil! One day, when Pam and her friends try to summon the "benign devil," the magic circle goes out of control and Pam is transported to a strange pararell world where angels and devils reside in an uneasy coexistence.

About a frog and her master. Her sadistic master...