A boy with female features is chosen by his drama club member to act as a fake girlfriend for their club, so they can practice on him before they actually get themselves girlfriends. This is series that started as a one shot and after a 1 1/2 year hiatus was given its very own series.

It's the year 2269, and April Enus is working as a spy for the Alliance. She's known as "Venus" because of her special power: fatalities don't seem to happen when she's around. But is this power a blessing or a curse?

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)

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. Until a girl named Kurumi Sahana shows up and wants to join up. But Sahana is no ordinary girl… When the two are left alone in the club classroom, Kurumi makes a special “request” of Hideo… From that moment on, Hideo’s dull life gets far more…frustrating. Sundome literally means "stopping the moment before," and considering the content of the story, it refers to being stopped just before coming or ejaculating.

Kurosaki Sou is a 16 year old who summons a devil to take his virginity. He hopes for a devil with flaming red hair, large horns, and black wings. He gets exactly what he wishes for, although he forgets something else rather important. Now he’s forced to live with this devil and has to think of a way to get rid of it, and most importantly – survive its lust.

This year, the student council has decided to add an exciting new contribution to the school's culture festival; an Idol performance! However, they don't actually have the money to hire any real Idols, so someone's going to have to train up an idol group from their female classmates. Hirano Harufumi is that unlucky someone. He has no interest in Idols at all, but he must put together a performance or risk expulsion from the school for his failure. Not surprisingly, most high school girls are too embarrassed and self-conscious to dance and sing in front of their classmates in a skimpy outfit. When Harufumi tries to think about who he would like to see as an Idol, his thoughts are drawn to his cute, shy, clumsy childhood friend Aizawa Momoka. Will Harufumi be able to convince her to be an Idol before it's too late?

Loser Shinjou Maita is trying to get new members for his movie research society club when he stumbles upon angelic first-year Hotohara Shiori. Life seems to be looking up for him, until a strange woman appears in his apartment, warning him that his life is in danger.

Synn is a hard-luck high school student. One day, he becomes student council president. But his job as president includes getting rid of mazoku (denizens of hell) that appear in his town as well. Also, he is informed that his father is the Maou (king of demons) and he is supposed to succeed to his position in the future. He has to fight against mazoku as the president, but his father is the leader of those mazoku. Well, will he be able to keep it a secret and enjoy his school life? Based on the Twinkle Crusaders visual novel/eroge.

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?!

[From ShoujoMagic]: A woman and her sexual adventures with her brother's friend.

One day, Natsuto found a loli near his house and it turns out she's a Holy Loli that is in a mission to eradicate the demons that escape from the Chaos Realms and as well as find the Key that can summon demons. Source: (Kisu KMS)

In order to determine which hot spring is to be the top overall, all of the hot springs within the region enter an unofficial tournament. The tournament is simple battle of capturing the enemy's flag, but the battle itself goes beyond any human measure. It is customary for a female to enter these battles. Carrying their pride and their flag, their only objective is to defeat their opponent. Hence they are commonly called "Fighting Spring Princesses." Kikko, the Fighting Spring Princess of the Aizen Hot Spring Temple, is an eccentric, hot-blooded person who is going to have her debut battle. Sit back and enjoy the story of Kikko's path to becoming queen of all hotsprings! [Source: MangaHelpers]

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?

Aki is head over heels in love with a classmate but doesn't know how to confess.

Eliza's grandmother constantly destroys any approaching suitor before Eliza gets the chance to talk to any of them. Will this be her chance when she's alone and finds a cute boy in the forest with his pet... worm? An adaptation of Little Red Riding Hood

Lately in Shibuya, many high school girls have gone missing but that doesn't stop Yaida Kirin, our guitar slinging, Tae Kwon Do wielding High School Ardor of Justice from venturing into the night to save the poor souls in need of help. It's a simple life for our heroine, but little does she know that a mysterious group of people have joined her bid for justice. Then there's Reido Serujio. What connection does he have with the mysterious group? What is he hiding beneath that weak, timid exterior of his? And why he won't stop following Kirin-san!? Is it love, like Yuki, Kirin's friend, says? from Aerandria

There were 99 beasts were set on the world that did chaos. They were sealed within "vessels" and they choose their own "masters". Three girls found a vessel and one of them made an all-girl school. Yukiji Shinazuki goes there as a freshman. Tamakichi Shinazuki lives with her and causes chaos all around Yukiji...even at the all-girls school! What's even more surprising about Tamakichi is...read it and you will find out!

The main protagonist is a Iga ninja named Saizou, who meets an Izumo priestess and protects her on her short journey to Sanada Yukimura. Sanada Yukimura is a powerful warlord in the Sengoku era. Sanada wants to gather 10 warriors, a party unrivaled in skill and power, to set his still secret plan into action.

This is the story of a girl who transfers to a new school and quickly becomes popular, and also becomes the focus of another student who focuses on the occult, and for good reason…

Kyotaro is just an ordinary guy trying to lead an ordinary high school life despite the fact that he is the son of a Yakuza boss. Then comes Kumiko, his half-sister he's never met before, who's looking for a man with a centipede tattoo who killed her loved ones in the past. Will Kumiko and Kyotaro be able to manage their family business? Will Kumiko ever find and avenge the man with the centipede tattoo? And will they be able to control their sexual urges for each other?

After establishing contact with extraterrestrial civilizations, it was found that humans were the only race to develop various sports. The number of alien sports fans grew dramatically, and the most fanatic of them regularly harass stadiums for taking part in a game, or demanding a good show, etc. Finally a treaty was settled, ruling all interferences towards other planets' cultures illegal. Rabbit Force, a group of rabbit-themed henshin girls, became responsible for enforcing the treaty and capturing any offenders.

They have been maintaining the balance of Yin and Yang since ancient times. Whenever the world is in chaos, there are many cases where evil spirits come to do harm to humans. The gods select talented humans and they are given their own guardian god for them to calm the over flow of Yin. This has continued all the way up to the present, so those that are chosen by god are hunters that eradicate ghosts, they are called Ghost Hunters.

A series of short stories centering on Sugekoma, a high school prodigy with severe behavioural problems, and Miss Matsuzawa, the teacher who he ties up all the time. It's a big send-up of S/M cliches, H manga, SF, and the otaku mentality. Nagano's art is at its most refined in this manga. There are minor subplots concerning other students - e.g. Junko Fujieda, who can't stand perverts, they make her violent; and Murata, a masochist who's infatuated with her.

From Wings of Yuri: High-school freshman Komari needs to find a dorm to stay in and ends up living at the prestigious Paraso no Yakata, but only because she agreed to be Himemiya Yukio’s servant!