The story is set in the same school as Yuru Yuri.

Hiro is an ordinary first-year student who enjoys her quiet school life. One day, she picks up a drawing by Toshinou Kyouko which causes her classmate Aoi to mistake Hiro for the artist. Unable to clear up the misunderstanding, Hiro is persuaded to create a doujin game together with Aoi-chan.

This manga follows Rin-chan and her secret book of recipes. A manga-style cookbook filled with recipes for cookies, desserts, and other treats relevant to the different plotline of each chapter.

Two brothers wearing bunnysuits hop on a phallic train and travel to a mysterious underwater brothel.

A 4-koma showing the daily lives and conversations of 20 ordinary (and not-so-ordinary) high school girls.

From LINE Webtoon:

A few thousand years has passed since an alchemist created Winter. He is now living with Jane learning what it means to be alive as a human.

Welcome to Rubbers 7, a small Japanese convenience store with a reputation for some odd owners. Rumors of mob connections and one rather eccentric boss with a passion for Ping-pong tend to keep business low. But when a young, quiet girl is framed for shoplifting and ends up working for the store. Can her touch, with the help of her unusual coworkers, including a shy boy and a drag queen, turn the fortune of the store around?

The Achiga Girls' Academy in Nara once defeated regional mahjong powerhouse Bansei High School. It advanced into the national team semifinals but lost to the eventual champion, and the mahjong club was later disbanded. Six years later, elementary school student Shizuno Takakamo befriends transfer student Nodoka Haramura. The two eventually enter Achiga Girls', but Nodoka transfers out of the school in the second year. When Shizuno sees Nodoka on television the following year as the national middle school individual mahjong champion, she decides to revive Achiga's mahjong club.

From Viz:

Shy Chise and nervous Shuji are high school seniors in a small town and have just started dating. But everything changes when Shuji discovers that Chise has been engineered by the Japanese Self Defense Force to transform into the Ultimate Weapon! Soon Chise is torn between realizing her potential as a devastating fighting force and her desire to share a bowl of ramen with her new boyfriend!

A young boy inherits an old house, but it's not without a previous tenant.

In kindergarten, naive Mitsuko began to think of Yoshioto, who was staying at her house, as her papa. And she vowed that she would be Yoshioto's bride when she grew up. Can this dream be fulfilled? In the journey to see him, she slowly understands her own feelings and her heart that refuses to mature, but nonetheless thinks she's already mature. In her search, they gradually melt into one.

A boy who worries about his height fears an impossibly tall presence in his home.

From the author of Sakamoto Desu ga?

By Azula
An 8 year old child, along with his brother, managed to escape from the disasters of an army's merciless killings! His own past, how much could people possibly know? His own heart, who could possibly understand? These questions was the "revenge-mindset" that has lingered the brothers through extensive training to become insanely powerful in the martial-arts. Now, this same 8 year old child has grown into an adult and is now a King! He is the Leader of the Southern Barbarian Sect. He is known as the southern barbarian, SANDSTORM..!!

Two young men vow to transform the destiny of Japan, by any means. As children, they survived the horrors of the Cambodian killing fields together. Now, can they topple the leaders of both the Japanese Parliament and the yakuza crime syndicate?

Although cold and calculating when need be, Hojo and Asami exemplify the traits their colleagues lack: loyalty to friends, compassion for the downtrodden...and an irresistible way with women.

Deputy Police Chief Ishihara sets out to expose their ingenious machinations, but instead falls helplessly in love with Hojo...

Note:
While this was originally 12 volumes in Japanese, when translated into English by Viz it was printed three ways: first in comic book form (each issue had 2 chapters), second in a 5-part 14-vol compilation of the comic books, and finally in a 9 volume manga series. Because the translation is so early, the books were flipped to English left-to-right orientation.

The nine English volumes correspond to these compilation parts, floppy issues, and original chapters:

V1: Part 1, Issues 1-4, Chapters 01-12
V2: Part 1, Issues 5-9, Chapters 13-27
V3: Part 2, Issues 1-5, Chapters 01-13
V4: Part 2, Issues 5-9, Chapters 14-26
V5: Part 3, Issues 1-7, Chapters 01-13
V6: Part 3, Issues 7-8, Chapters 14-16; Part 4, Issues 1-5, Chapters 01-09
V7: Part 4, Issues 5-7, Chapters 10-14; Part 5, Issues 1-3, Chapters 01-05
V8: Part 5, Issues 3-8, Chapters 06-15
V9: Part 5, Issues 8-13, Chapters 16-22

From CPM:

From the pages of history comes the legend of the Samurai Jubei and the book he was pledged to protect. Now that book has been stolen and Jubei must retrieve it before Japan descends into bloody civil war.

Toshiko Momojiri - an ordinary kind of girl - falls in love with Kuroo Samehada, a gangster who is on the run after stealing the mob's loot. Toshiko, too, is on the run from a weird uncle. This is the story of two fugitives who meet and fall in love amid violence and gunfire.

Midori is a high-school-aged lesbian who has just been rejected, driving away one of her few friends. In the world right now, there are creatures called "Extraneous" that appear out of nowhere, kill people, and disappear again. No one remembers when they started appearing, but the chance of being killed by one is about the same as the chance of dying in a car accident. Midori's mother was killed by one a year ago, and not only is her father rarely around, he's also deeply in debt. She gets attacked by an Extraneous on her way home, but is saved by a mysterious girl who claims that she's a god. Midori names her Hitsuji (sheep) because of her horns, and takes the girl in. They start a website, Hitsujiya, an Extraneous-fighting service provided by Hitsuji.

Meet Suzuki Mika, teacher at Okitsu High School. Mika-sensei is a good teacher, but she has a small problem... literally. Although she's 27, she is only 148 cm tall, and has the face of a child. As a result, it is often difficult for Mika-sensei to get anyone to take her seriously.

From MangaHelpers:
Sawamura Soushi is a soldier in a war-torn future. He meets a cute, innocent young girl named Nadeko, with whom he starts up a friendship. Nadeko is a flower girl, one of the girls who has a flower growing from her heart. One day, when Sawamura is trying to protect her from danger, she confesses her love to him and protects him with the plant growth that suddenly comes forth from her body.
Sawamura soon learns that there is a special squad of flower girls and their partners, and that their abilities are awakened when they fall in love. But does he really love a girl that is a decade his junior, and will he be willing to be a good partner for her? What's more, he learns that the awakening also starts the growing of the flowers in their bodies, so that the flower girl soldiers have only a short while longer to live. How can Sawamura and Nadeko make the best of such a terrible situation?

A manga based on the Sengoku Basara 3 action video game. The main characters, Date Masamune and Sanada Yukimura are two warlords who are both attempting to conquer all of the land. Almost greater than their desire to conquer, though, is their desire to fight each other in single combat.

From Bliss:

With the death of Nobunaga, Japan is thrown into a mist of battle once again as the many warlords of the nation try to unite it as one. But can any succeed when faced against Nobunaga's sucessor, Toyotomi and his lust for power thats sets the flame for war as he try to take over the world fulfilling his ambitions of absolute power?