From Shinmakoku Scanlations:

Yosemine Takumi is a difficult student to handle. He's used to get what he wants by using his family's strength in school. The new Infirmary Nurse, Tsutsui, is determined to change all that. He's not going to let himself be bullied by Yosemine, or anyone else, after all these years. But Yosemine has fallen head-over-heels in love with Tsutsui-sensei and set the goal on owning the nurse for himself!

Tsuchie Takeshi has dreams of when he played with Hikari-chan as a child. He remembers her as a kind, sweet girl. However, one day on the way home from school, Takeshi is abducted and taken to a huge house, only to find out that she's become an arrogant, violent dominatrix (emphasis on violent). Furthermore, she says that he promised to marry her! How will he adjust to her new personality, and living with her as a new son of her prestigious family?

[From ShoujoMagic]: A collection of short stories from the pages of Sho-Comi! Story 1: Side Seat de Daite. Mamii is in love with Sawaii, the person everyone considers to be a dork. When she confesses to him, he tells her he has conditions for dating her. What are the conditions? And is Sawaii the person she really thinks he is? Story 2: Brazen Lovers. three chapters Yuuna's mother moves them everytime she breaks up with a boyfriend. This new place is a real dump. Annoyed, Yuuna heads off to the beach where she meets a very sexy guy. Sou says "Lets always be together." but when Yuuna wakes up he's gone! Two people like this are bound to meet again... Story 3: Feel It, Roast Virgin. Rika is a virgin and is very nervous about her first night with her boyfriend Yuuya. It doesn't help that Yuuya tries to do it everywhere, outside, at school, he's ready! But will Rika be ready? Story 4: St. Gal Chick Valentine's Day. Mika's school has separate buildings for boys and girls and the girls have asked Mika as a student representative to get them co-ed classrooms so they can spend Valentine's Day with school idol, Subaru. Mika vows to try her hardest, even though Subaru annoys her. But maybe he's not such a bad guy. Story 5: Secret Apple. Sakura Kazuki and Katou Ryu are lovers who have been meeting secretly for two years. Because they were once step siblings, and their parents had a messy divorce, they can't tell anyone. Will they ever be able to love freely? Story 6: Double Face The Dangerous Classmate. A short 6-paged funny.

Childhood friends Chihiro and Keigo are living together under one roof. They're lovers, but they've only ever kissed once. To Chihiro, it hardly even feels like they're going out, and he's getting impatient! And on top of that, he suddenly has a rival!? It's ever-loyal Keigo and headstrong Chihiro's heart-pounding, heart-breaking LOVE!!

-DMG

An entertaining romp from Modoru who has once again veered away from her dark side and visited the side of her humorous stories. Of course it's still rather twisted. A couple of high school delinquents (Teru and Miki) discover that despite being from opposing sides, they have no objection to a bit of a sheet tumble with one another. Doggie-style refers more to how one of them is referred to as a dog by the other. Neither of these guys is an innocent, and it will be interesting to see where it goes.

The series was named after the Slam Dunk doujinshi "Dog Style" Modoru wrote in 1994.

When the hot-tempered Han Hye Won accidently insults the handsome jjang of Han Hwa Go, Sun Woo Bin decides to pay her a visit... with his entire motorcycle gang, ready to see some blood. So how does that lead up to a kiss and the infamous captain begging for a date? Do you want to try?

Japan in the future has a massive over-population problem. Scientists have traced the root of this problem to one particular individual, Junta Monamari. According to their records, Junta was a "Mega-Playboy" who had sired children with over a hundred women. Each one of his sons had inherited the Mega-Playboy gene too, so the problem grew exponentially from thereon. Enter Karin Aoi, a "DNA Operator". Karin is sent back to the past with a mission: to alter Junta's DNA and prevent him from ever becoming the Mega-Playboy, thereby eliminating the world's overpopulation problem. Junta's DNA can only be altered by shooting him with a special bullet called DCM which contains the chemical for suppressing the Mega-Playboy DNA. In return, Karin gets a vast sum of money... enough to make all her dreams come true. Will Junta become the playboy he is destined to be, or will his better self prevail? But Karin is falling for the real Junta too... and what of the sweet and kindly Ami who has secretly loved Junta all her life? What will happen to future Japan?

Jeong-Hwan received a letter from his sister Ji-Yeong that said, "Please rescue me, the devil is here!"

His sister goes to an all-girls school and in order to rescue her, he must disguise himself as a female student. In this school, all students are candidates to become "the bride of the devil."

From NOIR:
Arisugawa Kiku (aka Arisu) is a Japanese high-school girl who gets really nervous around foreigners. Arisu's father is getting transferred to New York for his job, so her mother pressures her to sign up for conversational English lessons. Arisu reluctantly goes to class only to discover that she's already met Ish, one of her new instructors! The two had fought over the last can of mackerel at the 100 yen shop the day before. Despite being a rude and sarcastic guy, Ish is actually very popular... Why is it that guys with glasses are just so SEXY?!

Eensy-weensy Monster is about a girl, Nanoha, who spends an ordinary school life with two merry close friends, reuniting with Hazuki, an archrival from grade school. From her anger, a mysterious monster appears!

A schoolgirl who was adopted by a family experiences hardships at school and home. Her foster family treats her as Reika, their daughter who had died a couple years ago. Suddenly, her real blood-related brother appears before her, who has been searching for her for years. Now her life is turned upside down. Will she learn to trust other people again?

Echo-Pun is a 4-koma about Eiko and Haruka, two childhood friends who loved superheroes and pretended to be heroes while playing together. While in grade school, Eiko had to move away, but the two promised to meet up again in high school and become superheroes for real.

Haruka grows up into a normal girl, and upon entering high school, she suddenly meets her old friend Eiko. Eiko, however, is wearing a costume, fighting bullies, and calling herself Echo, a superhero. Haruka tries to keep Eiko out of trouble with both the bad guys and the disciplinary committee president, a girl named Kamikaze Shiori who, for some reason, seems quite interested in Eiko.

Can Haruka lead her old friend to the stable side of society, or will Echo drag Haruka further into the world of alter egos, costumes, and justice than she's ever gone before?

From Fushichou:

When Masachika Ebisu arrives to stay for the first time in a dorm at a remote boarding school in the mountains, his attendant Shibazaki calls on the roommate Wataru Tamon to take care of master Masachika-sama. It's a burden Tamon did not want, but one that he reluctantly embraces even as he realizes he is not acting like himself by doing so. Ebisu is a spoiled cheeky brat, totally inept and a liar, all of which angers and frustrates Tamon to no end. But, there is also a naïve vulnerability to the boy whose only friend up to now has been his servant, Shibazaki. From his fear of thunder that has him crawling into Tamon's bed to his never-ending mentioning of Shibazaki's name, Tamon grows angrier and colder towards the source of his frustration. But, Ebisu wants Tamon to pay attention to him; he wants to get along with his roommate and become best friends. It's so easy for Ebisu to express his feelings freely, unlike Tamon who keeps his growing infatuation for his roommate a secret. But keeping his emotions to himself leads to misunderstandings and hurt feelings. Can the two of them find the courage to tell each other their true feelings before it's too late?

Roa Coatl is on a mission. He must find the descendant of Quetzalcoatl to make her his wife and continue his great race of dragons for 'that day'. However, with no knowledge about love and having no interest in women, will he be able to accomplish his task in the human world?

Jr. high student Izumiya is surprised by a sudden kiss from his handsome classmate Hayakawa. Leaving him completely confused, Hayakawa suddenly leaves town, but the two reunite again in high school. As the two continue to part and reunite, Izumiya's feelings start to stir...

From Fantasyshrine:

Youhei immediately fell in love with the actor on the late night advertisement, Satomi. After going through some random events, they became lovers. However, how will these two love birds face the upcoming events which involves costumes, a manager, a stalker and maybe an old crush!?

From Dragon Voice Project:
Family Complex... This is exactly what Akira Sakamoto suffers from, being the second eldest son of the Sakamoto family and the only NORMAL person. The rest of the family consists of beauties, from the parents to the eldest son and the 2 daughters. Poor Akira feels that he's totally out of place, and tries to hide this from the others... but then one day it all comes out. How will his family react to this? In this hilarious manga, every chapter is dedicated to one family member, starting with Akira. Family Complex isn't quite like anything else.

The second eldest son, Akira. Appears in another manga Princess Princess as a minor character.

Sweet and pretty high school student Keita is aggressively courting his remedial class teacher, Soga. Soga, however, thinks it's just a childish joke, and that there is no real love... From the beginning of courtship between sensei and student to their first time together, and other romantic stories! In another pairing, an ex-student meets his tutor. Adult love relationships are compiled here. Pure love and romantic love stories of innocent teens and adults who are toyed with by them.

Anji is the complete opposite of her beautiful, smart and ambitious older sister Anri. To make matters worse, Anji has a hopeless crush on Anri's boyfriend Baek-hui, who is her sister's match in looks, brains, manners and goals. But is Baek-hui all that he seems? From Baka-Updates: Anri and Anji are sisters. Anri is one year older than Anji. Anri is a person with determination and guts, not to mention top grades and attitude. Anji has really nothing to offer. She can be quite mean and unreasonable. But, when it comes down to her sibling, she can be pretty determined. This story details the troubles that Anji goes through because of Anri's two-faced boyfriend, Baek-Hui Kang.