From Viz: What happens when an all-girls' high school reigning tomboy finds out her school is about to be filled with boys!? Hanabi Oozora is a rambunctious sixteen-year-old tomboy who comes to the rescue of her less assertive friends--sometimes in exchange for food. So what does she do when, all of a sudden, her all-girls' school is about to be integrated with an all-boys' school?! She meets and falls in love--naturally--with one of the three most popular and handsome boys in the Student Council, Yasuaki Garaku! Unfortunately, Yasuaki doesn't care for girls... and when the girls' Student Council clashes head-on with the boys' Student Council, Hanabi steps in to become a member - hoping she'll change Yasuaki's mind!

In one unusual Tokyo high school, education takes a backseat to brawling as warring clubs wreak havoc in the hallways and chaos in the classrooms, all vying to be the baddest team around! Although they often contribute their fair share, only a handful of students serve to stem the tide of violence in this untamed outpost. These are the few, the proud, the powerful: the members of the Juken Club!

Wakamatsu Masato lives with his step-sister, Miyuki, whom he does not have blood relationship with. Their father is always working oversea (in fact, he has not appeared in the manga at all...) and left the two of them living by themselves in Toukyou. Miyuki is cute, nice, sensitive and very popular among guys around Masato. Masato has a girlfriend at school whose name is Kajima Miyuki, who is pretty and gentle, the ideal dream of every high school boy. It took years for Masato and his sister to realize whom they love and care most after a lot of events.

This manga was very popular in Japan and was one of the winners of the 1982 Shogakukan Manga Award for shōnen or shōjo manga, along with Adachi's Touch.

High schooler Torii plans to get the girl, even if she is his teacher. The teacher plans to grow up and leave behind her basketball-playing youth. In basketball, planning and strategy can win the game, but is that also true for real life?

In this school fantasy story set in the distant future, creatures contaminated by pollution have overtaken the land, forcing humanity to live in isolated mobile cities called Regios. One such city named Zuellni is a self-contained school in which freshman Layfon Alseif has just enrolled. Layfon reluctantly joins the 17th Martial Arts Studies Unit led by the third-year student Nina Antalk and embarks on a series of adventures.

An original side story that focuses more on Nina.

From 200 wpm:

Miyu, an ordinary new first-year student who hopes to become a mangaka meets the schools’ class president who seems to have a hidden side to him. While being pushed around by the cool but private class president, the curtain on Miyu's stormy school life is raised.

All humans in this world can use the power of the light of mana, and those who can't are considered to be subhuman 'Norma.' The world is like a peaceful utopia, and the celebrated princess Angelize leads a happy life. She believes that the only darkness left in the world is the existence of the horrible Norma. However, in a ceremony on her 16th birthday, the truth is revealed--Princess Angelize is a Norma. Now she is going to learn what her society does to Norma. She is sent to an isolated island full of others like her, who are taught that the only reason they are allowed to live is in order to fight to protect the peace of this world. Now "Ange" is part of a squad that pilots Paramails and fights invading extradimensional dragons.

A new teacher finds himself a newly appointed position as a teacher at an all girls school... on an island... in the sky! How will he make do in his new surroundings? Or the residents of this island who seem like they came from another world? And what's more, how will he fare at being a teacher?

1) If It's Not You
For Suwa, a hunk like him needs a pretty girl by his side. Theoretically. But in fact, he's going out with Fujisaki, four-eyed and average looking. It's just a temporary relationship for Suwa, only until he finds a girlfriend... But then, why does he feel so guilty when he takes an interest in someone else?

2) Are You Lovely
When Daisuke finds a love letter in his shoe locker, he's over the moon with joy! The handwriting and the girl's name are so cute, her looks are surely as sweet.... or are they? "Ruka-chan" turns out to be a large, effeminate, kendo-club freshman guy! What will Daisuke do??!

3) Two Glasses
Ryuu has a fetish... a glasses fetish to be exact. In a triangle of seduction, Ryuu has to choose between his cute childhood friend Aya, and his sexy co-worker Kuze-san.

4) Moonlight Stroll
Yuuya is stressed out by Tokyo... the city, the company, the trains. He suddenly gets a call from Haru, his ex - who apparently emailed that he was coming to visit? The days with Haru pass, and Yuuya remembers when they were together... how nice it felt.

5) Even a Dog Wouldn't Take a Bite
Yutaka and Yoshi have been going out... but lately Yoshi keeps breaking appointments because of work. Yutaka gets fed up with it, and decides to let of a little steam with the new guy Narazaki...

Wataru starts his high-school life by getting forced to cross-dress by his senpai Ayane Takamura.

Narue is an adorable schoolgirl with a secret. She's really an alien with powers right out of a sci-fi comic! But growing up is never easy, and sometimes it doesn't help when you're from outer space. Join our spunky heroine as she faces androids, alien invasions, and (scariest of all) her very first date!

Note: Won the Seiun Award for Best Comic in 2014.

The sequel of Kirai ja nai Kedo, Koi ja nai Kedo and Kare Ja Nai Kedo as the fourth story of the Yuki-Shinonome series. Finally the both of them became a couple, but another obstacle awaits them...?! Shinonome finally made Yuki-chan his boyfriend, but wait... the storm is not over yet. Who's that person who's taking Shinonome away to the counselling room? Is Yuki-chan.... feeling jealous?! And why is Yuki-chan's brother here?

From Girls' Generation: Kokonoe is a werecat who turns into a cat when he is excited. Destiny has it that one morning, Kokonoe, runs into Natsume, who seems to have a special relationship with cats. With Natsume's touch, Kokonoe soons finds himself purring and getting excited. However, Kokonoe is determined to keep his cat side and the feelings he has for Natsume under control. How will their love blossom? A love lesson between a white coat school doctor and a werecat.

From Turtle Paradise:

It's not that she tries to keep to herself, exactly: It's just that everyone seems to look right through her! Naturally, Sakuya Tohno has a complex about it. She says she's just like air: ever present, but never seen. All she wants is a friend, but building relationships isn't exactly easy for someone who is, for all intents and purposes, invisible. But then she hears a legend about the "Thousand-Year Sakura" and how, if one makes a wish beneath its perpetually-blossoming boughs, it's sure to come true. So in a moment of desperation, she races to the tree, only to find four very attractive boys waiting for her... And at that moment, beneath the cherry blossoms of the ever-blooming Thousand-Year Sakura, something incredible happens!

A collection of short stories:

1-3) You're Hopelessly Cute
Mikuni Renji had always been serious in every love relationship. It was his bad luck to meet with people who only used him for satisfaction. Ichinomiya Shinobu, the sadistic younger flower shop prince who was his company supplier, fell in love with the Mikuni through constant teasing. Trouble came when Ichinomiya met Mikuni and his ex-partner on the street. Would Mikuni get dumped again?

4) Useless Goalkeeper
A friendly high-school student falls for his reclusive classmate.

5-6) Sorry, but I Love You
The son of a "Mama" realizes his love for his coworker, who also happens to be a cross-dresser like the son's parent.

Sugiura-kun became an assistant for the manga artist he admired most, only to find out that Sensei is totally nympho. Being attacked in bed immediately after he began working, every day he must deal with the perverted and frustrating Sensei. Despite this, Sugiura-kun sometimes finds himself thinking "Maybe I like Sensei". Also includes a one-shot! A cute, slightly perverted and moving debut comic!

From Yen Press:
The "Roman Club", a school group interested in the occult, to which he's practically enslaved, has become boring for one Hideo Aiba. In fact, he finds his entire existence pretty tiresome until, one day, when a girl named Kurumi Sahana shows up and wants to join up. When the two are left alone in the club classroom, Kurumi makes a special "request" of Hideo, which makes him (understandably) freak out. Though he doesn't know what to think, one thing’s for sure, Hideo’s life just became anything but boring.

A young man finds and returns a lost wallet and cell phone to a beautiful young lady, thus begins the destined relationship between two strangers. Sound typical? Well then, how about making the young lady the young man’s future homeroom teacher, and give them both a twisted sense of right and wrong. And just for kicks, let’s have the young man help himself to a self proclaimed reward from the lost wallet before returning it… but of course, this scenario wouldn’t be complete unless the young lady was very unforgiving when it came to teaching one of her students a lesson on morals. (Source: Infinity Studios)

Gichi Gichi kid is a full manga about a boy with magical powers. The same adventures of children with the unique Maruo´s vision and elegant drawings; this kid is always making good for the people; nothing to do with the author's usual works.

[From Condensation]: Sagara Yuki is a high school student who's shorter than all the other guys in his class. Moriyama Miki is the girl who admires him despite his small stature. Follow the hijinks and the romance between Sagara and Moriyama as they become closer and conquer the obstacles to their love! Was soccer mentioned? This is a super cute and funny manga. Volume 01 is a prequel to the actual series which begins in Volume 02. * Contains the following short stories: • I Want to Protect You (Volume 1) Yuka is in love with her childhood friend, Haruki. The problem is that Haruki has a peculiar body condition - when people get near him, he gets attacked because of his pheromones. What will happen when they start dating? • Valentine Nanka Kowakunai!? (Volume 4) Moe-chan plans to give Kyou-kun her homemade chocolate, but will she be able to when the rest of the male student population are after it too? • Mousou Otome (The Delusional Virgin) (Volume 6) High school girl Chihiro is, in fact, a shoujo manga author! She bases her manga on her wild ideas with her first boyfriend, Izumi-kun, but she's keeping it a secret from him...? (1st oneshot in Megane - Hazushitemo Ii desu ka?)