Celebrating the upcoming release of the Splatoon game the june release of Coro Coro Comic features a special section of Splatoon manga

High-strung Chiga finds himself questioning the results when his judo team partner, Kokusai, is elected class president of their all-boys school. A president, of course, needs a running mate - and just like that, Kokusai appoints Chiga to be his vice-president! How did a slowpoke like Kokusai win an election, anyway?! It quickly becomes clear that Chiga's major vice-presidential duty will be to keep Kokusai out of harm's way, but is he up to the task?

From MangaHelpers:
Nogawa Izumi is a good student, and a class representative, but she has an increasingly high libido. It's gotten to the point that she'll claim to feel bad during class, so she can run to the nurse's office and masturbate. When she learns that the Earth is being invaded by aliens that look like people dressed up as animals, it turns out her high sex drive may be able to help protect the Earth. The first time Izumi is attacked by the aliens, she is rescued by Usayama, a bunny alien whose race was their previous victim. Usayama gives her a swimsuit that will allow her to fight the aliens, but which also sends her constant arousal through the roof. The scientific organization that Usayama is affiliated with think that Izumi, with her high erotic level, may be the person they've been looking for to fight the aliens. Will Izumi be able to save the Earth?

Tohru Fujisawa attends AKB48's 19th Member Selection Rock-Paper-Scissors Tournament held at the Nippon Budokan on the 21st September, 2010 and draws a one-shot from his POV as part of the AKB Observation Section. Titled Repoman Soul!, it showcases the soul of the fans at the AKB48 event!

A girl named Iwase Maho moves in with a family friend to make the commute to her high school easier, but something is off about her...

From Fujoshi Bitches:

Hibiki thinks he's got everything figured out, but someone else knows a little more...

Ritsu had always hated her rival Kanzaki, a cram school classmate, since he seems to be beat her in everything. On the other hand, she loves her beautiful best friend Yuuna. When Ritsu and Yuuna was asked if there is a boy they like, Yuuna had suprisingly answererd yes! Who is the boy Yuuna likes- could it be Kanzaki? But wait, that's impossible, because--

Japan is a seismically active country, so the occasional trembler isn't anything that people get too worked up about. They happen and it's unfortunate, but in general Japan is prepared. But there is one scientist who believes that he has found proof that a recent quake has triggered a cataclysmic event, and that within a year Japan will sink into the sea. Now if he can get anyone to believe him before it’s too late…
Also known as Japan Sinks, this is based on the award-winning novel and movie of the same name.

Ichika had always tried to fit in, as she strives to have friends, unlike her time at elementary and middle school. She still does have certain nerdy and carefree childhood friend "Doc" that she secretly sees. Hanging out with him makes her realise that maybe she can change...

From: Winter Translations Haru who's allergic to boys transferred to a class full ikemens and bishounen! Will romance spark between Haru and the boys?

From koyukiya:

Hasegawa Yuiji accidentally finds out that his classmate, Yoshinaga Yamato, is gay. Eventually, he realises Yamato's gaze is directed towards an unattainable love. From a study group together Yuiji finds out that Yamato is a "pretty nice guy," and despite his awkwardness, starts wishing for his happiness...

Crossdresser x Crossdresser BL! Plain and shy college-goer Iijima's secret hobby is crossdressing. He gets hired part-time at a crossdressing bar, on the first day on the job he meets another crossdresser — Rina. Rina bears an uncanny resemblance to a popular guy in Iijima's middle school, towards whom the latter harboured unrequited feelings...

Our heroine, Kanna, is the daughter of the famous builder in town. One day an orphaned boy with a hammer appears to train under Kanna's father?! The heart pounding love story of a handsome apprentice carpenter.

From Storm in Heaven and one of their legacy groups, Bamboo Feathers:

In ancient China there exists an alternate dimension called Jusenkai, whose inhabitants, the Senkaijin, possess tremendous powers. One of them, YanLang, fled to Earth along with his rebel army after being defeated during his attempt to overthrow the Emperor. In order to capture the fugitives, the Emperor sent his elite soldiers to Earth after them.

LiFang has been traveling alone to find his father's murderer when he picks up a sick and injured man. That aloof man, TuoRen, turns out to be one of the imperial soldiers sent to earth to hunt and capture the Senkaijin rebels. While his comrades work in pairs, TuoRen prefers to be alone. That is, until the strangely powerful human, LiFang, decides to follow him on his quest.

Note: The volume 5 extra is an unrelated short story, "Time Lag."

Collection of stories:

1-3) Florist no Koi wa Saku (The Florist's Love Will Bloom)
From Fujoshi Bitches: The love of a kind florist and a blond, young man.

4) Shachiku na Ore to Sakushi na Kouhai
Office love story.

5) Hitomi no Oku no Yokubou (The Desire in Their Eyes)

6) Kare no Seiheki Ore no Kurou

7) Ete… Fuete…?

8) Honne wo Kikasete

Original 4-koma updated daily at http://sai-zen-sen.jp/comics/twi4/fatemahjong/

Third year middle school student Anna has begun living with fourth year college student Ema, and is swung about by the tactless Ema. Drawn in by the romantic designs of Ema, the once perfectly ordinary Ema, is brought into the adult world. And then, she is shown the scene of a kiss between two girls...

Lost people often stumble into an obsure, yet charming shops called Wakusei Drops. On the first floor is the general store owned by Ranko Suzuya, the second floor has a charming coffee shop run by Tomoyo and on the third floor is a fortune telling shop by Mikimoto. Even though they are not a thriving business, they go out of their way to solve any customer's wishes, one lost person out of time.

From iskultrip Scans:

Uemura Takitarou is a Genius Cosplayer who can change himself from head to toe. One day, he finds his only friend, Asami Kusaka, killed by the Night Blindness Man, a serial murderer who gouges out the eyes of his victims. Tominaga Hana, a model, discovers his talent and recruits him for the company, UC, an office that solves mysteries and crimes by manipulating rumors/urban legends. Can Uemura track down the person who killed Kusaka?

Spin-off of Kurayami ni Strobe featuring Sawayama & Hase.