From Entropy:

Seriu meets Yae, an older woman in the photography club, who’s also a celebrity at her university known for her free-spirited speech and mannerisms—especially her magnificent travels from man to man! What’s intriguing, though, is their relationship. Frustrated and formerly part of the tennis club, Seriu thinks that his girlfriend is just a bit of heavy baggage, but he unexpectedly gets off to a good start with her! Even though they hurt each other with their honest confessions, they grow with each other. Yasashii Watashi is essentially a compassionate romantic drama set in a university setting.

Mari is a shy, studious girl who has neither a boyfriend nor any friends. One day, Akiko - one of the most fashion-conscious and sociable girls in the class - strikes up a conversation with her out of the blue! As the days go by the two become inseparable, with Akiko often cheerily remarking on how they became best friends so easily. Mari has a lot of fun with Akiko and her group, slowly becoming more outgoing despite still being timid and awkward. But she knows, deep down inside, that she doesn't want them to stay just friends forever...

From MangaHelpers:

The Sengoku era gave birth to many historical legends. One of them is Naoe Kanetsuku, the brilliant military general of the Uesugi family. Together with Maeda Keiji, a legendary warrior on the battlefield, who become lifelong friends with each other, they carve out a piece of history in the most dangerous and volatile time in Japan’s history. The two men recall their beginnings and the journey they took to get to the accomplished position they now sit at. [vyc]

The fictional Japanese city named Sugomori City is built on reclaimed land. But as the years go by, the city's population is decreasing. One day, Sonosaki tells her classmate Katsuhira: "You have been selected to be a Kiznaiver." The Kizuna System, which allows Katsuhira to share his wounds, connects him to the classmates whose lives and personalities completely differ from his. The Kizuna System is an incomplete system for the implementation of world peace that connects people through wounds. All those who are connected to this system are called Kiznaivers. When one Kiznaiver is wounded, the system divides and transmits the wound among the other Kiznaivers.

Dragon Gon... A 36 year old bachelor and lusterless boxer who is on the verge of retirement. By all expectations, he would quietly and uneventfully retire. Until he happened to meet a vivacious actress... Love, laughter, and boxing; a drama about the prime of life now unfolds!

I want to continue to hold sister could not bear. Lost memories and H Love Love Life.

One chapter in the saga of Shima Kousaku, salaryman at Hatsushiba Electric.

In this part of the series, Kousaku has just started working at a branch office for the company doing an unexpected amount of menial labor when a chance meeting with the company president leads to his dearest wish being granted as he is transferred to the central office. Not all is well there, though, as he becomes involved in the complicated affairs of his colleagues, whether in business or in romance. In spite of everything, however, he retains his faith in the company and an unflappable optimism.

The story starts with unknown death cases in the parallel universe in Scandinavian countries focused in Urvland. Urvland as a Scandinavian country, has the highest ratio of self-killing. But who knows the mystery of these death cases? What is the reason behind? Creatures whom call themselves as Afreet begin to reveal themseşves. Main character Oleg Fjerdssan and his kitten found at street are about to go into a deep tragedy and we will see How they are going to be affected by this calamity.

Spin-off of I Am a Hero, a love story. Kozue is about to break up with Ta-cchan while he plans to propose to her, right at that moment, the zombie apocalypse crushes down on Osaka. Now they have to find ways through the deadly chaos to each other.

I love math. Just after the high school entrance ceremony, I meet a beautiful girl: Milka. Milka is a mathematical genius. She gives me many math problems, she shows me many elegant solutions. Milka and I spend a long time by discussing math in the school library.

One year later, I meet another mathematical girl: Tetra. Tetra is one year younger than me, and asks me to teach her math. While I teach her, she begins to understand math and to love its elegance gradually.

The second series is about Pythagoras Theorem, Elementary Number Theory, Group, Ring, Field, and Fermat's Last Theorem.

Fujisawa Kenji is a troubled 17 year old with who was born in Yubari, Hokkaido. He rebelliously seeks to become a mob member for reasons kept in the dark. After dropping out of school, Kenji goes to his local Kumicho, who tells him to learn the trade from an elite yakuza named Kujo Eiji.

From: Easy Going Scans

Mu-Sang’s has a quest... He must find and kill every “Gwi” that has ever existed. He is determined and won’t let anything get in his way, not even the imperial army!
While traveling and searching for the remnants of Gwi, he meets a girl who also bears the same mark crossed out than he has. A fateful encounter? Were those two fated to meet? And why does he hold such a grudge against the “Gwi”? ...are all questions left to be answered!

A young witch tries her very, very best to take care of her first planet.

Rally Vincent and Minnie-May Hopkins are two regular American girls. Regular American girls who own a gun shop and might have dabbled in prostitution, respectively. And who happen to be a crack shot and an explosives expert, respectively.

These might be odd skills for American girls, but these two happen to be Chicago's top bounty hunters. Rally can shoot the trigger off a gun from a good distance, and May generally wreaks havoc with explosions and cuteness. And together, with some very useful friends and associates, they make up the Gunsmith Cats.

Burst finds our ladies back at work, back in action, and... back in trouble.

"There are men who, on coming to places that women find unlivable, are all the more determined to find there a reason for living. These men epitomize grandeur."
Welcome to Gun Frontier.

From Overload Scans:

Washizu Miri, a second year high school student, is a small 148cm(less than 5 feet)-tall girl who has acquired a reputation for being violent and dangerous. This collection of short manga (generally 2 per page) chronicles the fun daily life of Miri and her friends at school, Natsumi and Utako.

A girl falls into a coma and finds herself at an unusual "convenience store" managed by a talking dog. In the land where dreams are made, suspended somewhere between life and death, she watches and learns from the various souls she encounters.

A story focusing on a group of college friends, and their lives. Each chapter focuses on a different friend, and their relationships with various other characters.