At school, Aiko discovers that all the girls in her circle of friends have already had their first menstruation – save her. After going home to her room, she reads up on menstruation and in frustration punches herself in the uterus. This seems to "awaken" Ma-chan, Aiko's anthropomorphic vagina, who begins coughing up blood. Ma-chan introduces herself and says that she's been with her ever since birth and from now on she's going to assist in her journey into adulthood.
The next day at school Aiko tells her friend that she's now one of the gang.

Note: Aiko no Maa-chan, was cancelled by Comic Zenon from fears of its publisher that the manga could be considered an “harmful publication” under the “Tokyo Metropolitan Ordinance Regarding the Healthy Development of Youths”. She decided to publish her manga through a successful crowdfunding campaign on Fundiy. Thus Aiko no Maa-chan will be published as one volume in 2015.

Popular composer Shu Ooka has an older lover, a beautiful bully of a man, Shizuka, who is also his cousin. They enjoy a lovefilled life, together with his son Botan... Except, their neighbour, the popular stage actor Ryujin Takamura is actually on an amorous quest targeting Shizuka! Ryujin has real talent at playing the lead role of a lover. But he has also been Shu's rival since they were students! And now, Shizuka is helping Ryujin out with his housework making Shu's heart burn!

Botan also appears in Emono no Kimochi

Aoyagi who was eating at a pub hears a nostalgic husky voice. The voice belonged to Akaha Furuhashi who used to be a classmate during high school, but that’s all they were. However, he still has a strong impression of him and even remembers the mole on Furuhashi’s neck against his fair skin and how he would wrinkle his brow when he was displeased. Aoyagi believed that that was the day that destiny connected them, but a small argument makes Aoyagi wants to create a date plan that would make Furuhashi fall madly in love with him…?

Souta Inui is a manager at Megapro talent agency, an agency responsible for turning young, beautiful women into stars. Inui, however, spends his time at the office ogling posters of the idols his agency manages, and has yet to bring in any new talent or take on a single client himself.

When told to go to the streets and scout talent, Inui falls and unwittingly grabs ahold of a devil girl's tail, at the same time asking her to join his talent agency. Now bound by contract, the girl has no choice but to abide by his wish, making it her goal the become the number 1 idol in Japan.

But who is this girl? Why is Inui the only one that can see her tail? Is she really a demon aged many thousands of years? No matter the reason or history, it's now up to Inui to turn this aggressive devil with a (literally) killer voice into the number 1 idol in Japan.

A small coincidence makes history!
The story of the earthlings and superhero Aimer's efforts to block an alien pumpkin gang invading earth is about to unfold!

The story follows Kiyozumi Kurokawa, a novice editor who is assigned to the editorial department of S ("Sandal") Bunko, which publishes light novels. Kiyozumi is determined to publish a million-selling hit series, but this task is easier said than done when his writers include a genius high school girl and an office lady whose last two series tanked.

From Hoshikuzuu Scans:

The story of a young owner of a long-standing small eatery and a puppy-like laborer.

Kota attaches himself like a puppy to Makoto, who has been like a fatherly figure to him. Even after they have grown up, he still smiles and proclaims proudly that “Mako-san’s food tastes just like a mother’s does!”

The two get along as well as a family, but one day, a customer arrives who becomes a thorn in Kota’s side. The two appear friendly and Makoto shows expressions that Kota has never seen him make. And he acts differently than normal… Kota is then plagued with a dislike and worry that he can’t shake off.

From Divine Sanctuary & Midnight Scans:
The Senpai that I liked so much had a girl he loved. No matter how hard I tried, I was second place in his heart. That’s when I started to go out with my classmate, Haru, who was also having one-sided feelings. We started going out to empathize and sympathize each other’s feelings but slowly, change was starting to take place in our relationship too.

Yukito Kunisaki is a man traveling Japan in search of the "girl in the sky". Eventually he makes his way to a sleepy seaside town, where he meets a strange girl named Misuzu Kamio who has dreams of flying in the sky. During his stay in the town, Yukito meets other unique people and begins to learn more about Misuzu and the town she lives in.

Itsuki Minami needs no introduction – everybody’s heard of the “Babyface” of the Eastside. He’s the toughest kid at Higashi Junior High School, easy on the eyes but dangerously tough when he needs to be. Plus, Itsuki lives with the mysterious and sexy Noyamano sisters. Life is never dull, but it becomes dangerous when Itsuki leads his school to victory over some vindictive Westside punks with gangster connections. Now he stands to lose his school, his friends, and everything he cares about. But in his darkest hour, the Noyamano girls come to Itsuki’s aid. They can teach him a powerful skill that will save their school from the gangsters’ siege and introduce Itsuki to a thrilling and terrifying new world.

Note: Won the 2006 Kodansha Manga Award in the shōnen category. A new edition named Air Gear Unlimited was released in 2014. The format is bigger and it contains some coloured pages.

From Chibi Manga & Shoujo Crusade:

1-3) Air Koi
Nina has one sided feelings for Hayashino Senpai. Nina is unable to see Senpai until she clears the game that Senpai provided…That is…to find and take the exact pictures that were e-mailed to her. But Taro from the same class was assisting her And realized how odd this game is and…?!
A Painful dramatic love story!

4) Lost in a First Love

5) Love Materializes

By day, highschool girl Aikawa Maki is a normal girl who has fun with her classmates Yuu, Michiru, Renge and Mina. By night however, where streetfights take place, she becomes an unrivaled lethal air-borne attacks user with a succession of victories: Airmaster. Various strong people, fascinated by this girl's strength, will come to challenge her in battle...this vivid street-fighting comic starts here!!!

A journey to find the power of the lost Queen. Their great adventure begins.

Reimi is your poor middle school girl who yearned to meet a rich guy and marry off rich. Meet Airin, a strange girl who so happens to be rich, but doesn't even look or act like it! Watch as Reimi and Airin turn each other's world upside down! Welcome to a world filled with cuteness, craziness, and comedy!

Koga is enchanted by Aki, a mysterious and handsome coworker who is always helping her out at her part time job. But what she doesn't know is, Aki has a secret... He can't drink anything but tears?!

From Fantasyshrine:

In the all-boys school, Blooming Love Academy, there's a super-elite group where gorgeous guys flock in unrestrained abundance, the GLG (Gorgeous-Looking Guys). Even the people off-campus have heard of them. One fateful day during the preparation of the school's Christmas party, Echizen Makoto encounters the tall, handsome Fujimiya. Will the ordinary-looking Makoto ever have a chance to make his wish come true!?

1-4) Aisanai Otoko
Sahara works in publishing with Yagisawa Kei. After vowing he won't get involved with straight men again after heartbreak, Sahara meets Seto who is a designer at a firm his company collaborates with. Seto begins to pursue Sahara, but what will happen when Sahara learns that Seto isn't gay?

5) Snow Tale
When Hiromu picks up Kouta half frozen in the snow, he never thought it'd lead to a relationship. When a crazy ex-boyfriend shows up, ready to attack, what will happen to the new couple?
(Also included in Make Me Happy)

6) Extra - The man who wants to know

N/A

It's while he was waiting for a girl in the street that Aikawa-san ran into a sweet-looking boy named Okakaneko Toshinori called Neko for short. The young man just got injured while saving a cat and he asked Aikawa-san to bring him to the hospital, leaving pretty much everything to the man's care. Three days later, Toshinori calls him and asks for his help again...