From Transient Mirage:

Hina Nobara is a girl from a good family who is the student morality officer for her school, the private Matsubase Academy. One day, a group of four sexy guys from the neighboring delinquent boys high school suddenly appeared before the sober and serious Nobara. They were incredibly attractive, but they were also the worst sort of people. Will they keep the innocent Nobara on their hook!? Good-looking and thrilling! This school diary of swoon-worthy gorgeousness and passion is beginning!!

From TCMANGA:
Emily, a 23 year old woman, is a teacher at the local high school. She's smart, attractive and put together--well it would appear that way. What has been kept a secret however from everyone else is that she is actually married to Shishio--an 18 year old student in her class. Lots of hilarious circumstances ensue along with some romance and some real life issues between the couple.

The prequel book Atashi no Lion starts the series, and then it becomes My Darling Lion and continues on for 10 volumes.

From Delish Scans:

Love blossoms in your face.
----------------------

One day in summer, the 14-year-old Maiko starts seeing flowers instead of heads on people in love. Nobody else seems to notice, not even her close childhood friend Ichi. What will change for her?

From Shinnen:

Isezaki, a second year from Kamiyama Boy's High, has had his heart captured by a girl he saw in the window of the neighbouring girls' school. A school route madonna!! After two months, it's time for her to graduate...?! It's a 17-year-old's summer starting from spring, chockful of idiocy and friendship enough to make you cry.

Also include is an extra story called Fuyu Hodoki in volume one.

In an alternate Earth, the armies of the Imperial Alliance have ravaged the entire Europan continent in 1935 EC during the Second Europan War. In the middle of the war, the army invades Gallian territory to acquire a mineral known as ragnite. Standing in their way is a recently drafted militia officer named Welkin Gunther, son of known Europan War hero, Belgen Gunther.

• Adorable to Me
A girl stumbles onto her school's art club and decides to join so the club won't be shut down, only to find herself falling in love with the club's one other member.

• Delicious Time

• Spike Girls

• Seiippai no Suki to Uso to (All My Love and Lies)
About two girls who are interested in the same upperclassman.

• Always
Retells the events of "All My Love and Lies" from Rinko's perspective.

• Sweet Sweet Sweet

• Worrying is an extra for Adorable to Me.

From Mangascreener:

Icoro is the princess of a country of eternal night. Her kingdom is surrounded on all sides by huge mountain walls. Snow falls constantly, yet without the warmth of the sun's daylight, it will never melt, only pile up higher and higher. Her people are destined to die out. While she is a member of the ruling royal family, her parents have both disappeared, leaving her alone with her blind younger brother, and crafty politicians hold all the power behind the scenes, leaving her sovereign in name only. Her life has been an endless cycle of hardship, and she has never smiled, not once. In fact, she is missing that part of all humans that knows happiness.

Enter Shiro, a mysterious young boy whose identity is an enigma, even to himself. He is able to forget all but the most vital of information within seconds. All he knows is that he is looking for something called a "Hitogata." After Icoro and Shiro's chance meeting, they end up on a desperate search for the sun that will melt the snow and bring happiness to the kingdom once more.

Will they ever escape the grasp of the corrupt authorities? Will they even recognize what they're looking for, if they come across it? Will this "Hitogata" be the key to finding a sun to save their home? The answers lie ahead.

It's a simple job, getting your blood sucked by Kaya Kiryuuin. Or...is it?

The human race is becoming more and more dependent on increasingly complex technology and machines; machines that inevitably break down. According to those lucky people who work at ATMT, the best job in the world is to be one of those special people who exists between the human world and the cyber world as "therapists", inserting their consciences into the broken machines via a proprietary interface to conduct the repairs. Such a job is not without immense risk and can result in a person being trapped in the device as an annoying, pitiful bug. Amongst the therapists, there exists a chosen few who have additional power and capabilities and who face the greatest risks and dangers - the Automata.

- Cave Scanlations

Official English Version - also Season 2 & 3
Original webcomic

Four spicy stories about lovers, who struggle with their very strong feelings, starting from a confession...

1. Yume Touka End Roll
2-4. Coyote Hita Hita Hita Kousagi Niya Niya Niya Watashitachi Fura Fura Fura Anata dake Niya Niya Niya
5. Kimi Shigure
6. Kimishigure

Abiding by his father's will, Shougo was transferred into an academy where many young girls attend. It appears as though his younger sister (separated from him at birth) also attends this academy, and that she is trying to get closer to him without letting know him who she actually is. Problem is, Shougo seems to be popular with the other girls as well! Can Shougo "properly" reunite with his little sister and while making a girlfriend at the same time?!

An Adaption of Sword Girls online game

From Shoujo Crusade:
Haruse Yui ends up becoming the new landlord for her grandfather's apartment. But it's no ordinary apartment because all the tenants wear glasses and thus it has been dubbed the glasses apartment! Not only that, the tenants aren't what they seem?

Also includes:
Otokomae!
Dakara Suki to ka, Kirai to ka
Ojou-sama’s Clinical Records

From Aerandria Scans:
A collection of one-shots all based on popular ballets, but in Japanese setting and with a definite supernatural twist!
Ghosts were once humans, too, and their love is still alive, as told by the master of lovely but eerie supernatural stories, Kamata Kimiko.

1-3) To Hold Someone Dear
Kayama Tomoaki is a handsome and reserved employee of a major company. One day, the efficient and reliable junior on his team, Saiki Keiichi, gets sick and Kayama goes to visit him at home. At work, Saiki is always stylish and nearly perfect, but unexpectedly, at home he is the complete opposite! The events of that evening change the superior and subordinate relationship between the two. Kayama is scared of loss and never lets strangers get close to him but when he realizes that Saiki only has eyes for him, his feelings waver...

4) Summer Contrail
Shuusuke is a business man who loves books... but he never gets a chance to look around since there's no bookstore around and he's so busy. One day, he walks around a corner and accidentally knocks over a high school student who's entering... a bookstore?! Shuusuke is thrilled to discover the little bookstore... but soon he discovers something (or someone) much more precious.

5) Weekend Melancholy
Continuation of the couple from Summer Contrail

6) Passion Carved by the Tyrant
Set in the early Taisho era, this is a story of two men who used to be classmates in an Imperial university. Eight years later, Fuyutsuki is an author and Sano is the son of nobility and a lieutenant in the army. Can winter camellias somehow bond these two men together?

---
from Renta!

This volume contains two stories that follow the Omochabako no Kuni no Alice fan disk which is part of the Heart no Kuni no Alice series (aka Alice in the Country of Hearts). Alice and the role holders have been placed into a magical parody setting. Some are students and some are teachers at the prestigious magic school, Symphonia.Chp 1 - Elliot StorySummary: N/AChp 2 - Joker StorySummary: On her way to become a witch, Alice must study plenty of difficult texts and exercise many different abilities. One day while she is struggling to comprehend the art of summoning, Black Joker comes along with his own special brand of advice.> Part of the Heart no Kuni no Alice / Clover no Kuni no Alice series( http://www.batoto.net/search?name=Alice&name_cond=c&artist_name=QuinRose&artist_name_cond=is )

From: Easy Going Scans

We find Chunwha in a world beyond his own. There he will struggle to find his own purpose among the many inhabitants of the new world including elves, dwarves, and even mages! As we watch him grow in strength and spirit, the manhwaga creates fascinating characters out of his companions and adversaries and moves past the simple concept of the antagonist vs the protagonist.

To find out what fate has in store for our hero, follow Id in a fantastic adventure, exploring a world where anything is possible.

From bl-gyaru:

Akitsugu has been in an unrequited love with Kei who only looks at Maya (a girl). After Akitsugu got back from a party, he found Kei in his room but this "Kei" isn't the real Kei?! What will happen to both of them?

• See-Through
On a rainy day Yano is stuck outside with the guy he likes, what could they be thinking? Could they be thinking the same thing?

Ryuuhei promised his father to protect Nao even though Nao is almost ten years older. Nao is almost thirty now and wants space. Can Ryuuhei really give Nao space?

Chika has always been a negative girl, one day Shimizu-kun (the cute guy from the class next door) confesses to her, since that time, she began to question that mindset ~