From DMP:
Kojima seeks to befriend the class outcast, and soon learns of Nakahara's troubled family life - of his uncaring, abusive father and mentally unstable mother. As Kojima yearns to somehow comfort Nakahara, he gradually becomes aware that his feelings for the other boy arise from more than mere sympathy. When Nakahara declares his own romantic feelings for Kojima, their relationship becomes one of sexual exploration as they face their first steps into adulthood together.

From: Alice Dreams
This is a collection of five shoujo oneshots by Shirasawa Marimo.

A collection of stories:

1-3. The Heart of Miscalculation
"Why don't you date me?" And that's how Miki started going out with Udou, from next door's classroom, who was fighting with his ex-girlfriend. It was because of a whim, just a "game". But being with Udou, he started getting comfortable? During the sex, Udou took control of him with tricks, making him tremble in pleasure. Tender caresses, sweet passion? What happened to my body? Damn, I'm not like this. A traditional boyfriend, and a boy who likes to flirt. A story of pure and immoral love between high school students.

4. Last Summer Blues
A bittersweet story about two boys who love baseball.

5. A Vulnerable Afternoon
What happend if Oomura breaks his glasses? Maybe finally he will be able to see good side of Tamachi, his workmate?

extra The World Revolves Around You
- bonus - related to: Sekai wa Kimi de Mawatteru

From Ochibichan:

Perky Yaaya is a first year student at Koushinmaru High School and a new member of the school newspaper staff. In order to become a full member of the staff she must uncover the identities of the Sannin Kichisa, a mysterious trio of masked avengers haunting the school!

The year is 2035 and schools have been suffering from a lack of child birth which has caused many of them to close. An energetic girl named Manami Amamiya transfers to a new school where she quickly becomes the student council president and starts to bring back some vigor in the students’ lives.

From DMP:
In a European school dorm, Georges Saphir is admired and loved by everyone. However, afraid of others doing him harm, he has never allowed anyone to get close. Why is it then that misfit Robert can effortlessly step over this line Georges has drawn, and see right through him? And will getting too close to Robert result in a tragedy that justifies his worst fears?

Part of a collection of oneshots called 'Mijuku na Kareshi'. Oono will do anything to get Nagumo by his side. According to MyAnimeList, this is part of a collection of one shots. The order goes like this: 1) Aimai na Kankei 2) Yasashiku Toraete; sequel to (1) 3) Itsuwari no Daishou (False Compensation) 4) Man On! 5) Kodomo Ijou Otona Miman 6) Sweet Restraint; (Amai Kousoku) 7) Miracles Don't Happen (Kiseki wa Okorenai) 8) Mijuku na Kareshi; extra to (7); (Childish Feelings; Immature Feelings)

From DMP:
Hikaru, a second year high school student, is obsessed with Shima, a male teacher. Surprisingly, Shima is not averse to the boy's affections. He even convinces Hikaru to study hard so that when he graduates, they would openly become lovers. However, Amamiya, an ex-lover of Shima, steps into the picture and tries to win him back.
Will Hikaru and Shima's passion prove great enough to hurdle all the obstacles stacked against them?

Features the same characters and locations as Mahou Sensei Negima!, however, this series has a different story than the original. The new storyline explains the addition of punctuation to the title.

Mazinger Angels Z is a sequel manga to Mazinger Angels. The series takes place a few years after the defeat of Dr. Hell, with Maria attending high school at Paradise Academy and an undercover Sayaka is the nurse of the same school. A new main character is introduced, Kikunosuke Abashiri. Also introduced are the Vegan Empire with the manga using a plot similar to Grendizer.

From Shoujo Manga Maniac:
That man will take away both your heart and your body, together with the jewels... Kaitou Crow is a beautiful, unidentifiable young man who's only after jewels. Ruri, the daughter of a jewel designer, accidentally saw the kaitou while he was going for a preliminary inspection. While snatching away Ruri's first kiss to seal her mouth, Crow announced that this time, he would steal both her heart and her body, together with the jewel ... ? The dangerous love mystery of a conceited, forceful, beautiful, young, and perverted kaitou!

Since the characters of this volume are the same of the other 3 volumes, you can consider this as the 1st volume of the series!

Includes extra oneshots, Kuchizuke wa Amai Bara wa Kizuato and An Easy Mystery Better Than A Kiss.

Collection of short stories:

• Midnight Express

• Monday is a Secret Romance

• Daydream

• Class 2-G's Romeo and Juliet!
In a certain high school’s class 2-G, there exist two factions: male and female. However, despite this, one young couple has fallen in love… But Asako and Ryou will have to overcome the wall dividing the two groups if they ever wish to be together.
- Which Scanlations

From Liquid Passion:

After getting into the super-elite private school, our uke has to be the Student Council President's 'servant'. When the President's rival is also interested, trouble is on the horizon.

From Chibi Manga:
Witnessing the sleeping Tian Tian being kissed by Yi Jie, Dong Hae realized his feelings for Tian Tian. This sudden moment of the kiss instantly caused an uproar between the relationships of the three of them.

A collection of stories:

• Otonari no Senpai
• Fuwafuwa no Kimochi
• Hajimari no Kotoba (also in Kirakira no Natsu)
• Hon no Tomodachi
• Mainichi no Tomodachi
• Christmas no Yoru (The Night Before Christmas)

From Canis Major Scanlation:

Collection of Oneshots:

Reversed Escape (Ch1)

"I like you, Senpai."

"Ah, but I'm not gay."

One day, Ryou received a confession from his kouhai, Miki. Despite receiving a blunt answer, Miki did not give up but rather, insisted on following around Ryou everyday, thus starting a game of tag between the two of them. But who is actually chasing who?

Alone Again (Ch2)

Bright and cheerful, Ayase always finds himself surrounded by people, yet he constantly shows a sad expression. Gloomy and quiet, Tooyama is the only person in the class who noticed this, and is attracted to that side of Ayase. The day Tooyama finally found a chance to talk to Ayase, was when he asked Ayase what he's so afraid of, leaving Ayase dumbfounded. There's no way we can be friends after that, Tooyama thought. However, during the following day, Ayase, who has always turned down everyone's invitation, invited him to go home together.

Boundary of Atmosphere (Ch3)

After being apart for a few years, Kyousuke was surprised to run into his old friend, Yuu, in town. Just like it had been in the past, Yuu has always been a good friend; kind and calm, his presence feels just as natural as the air. But how could Yuu kiss and invite Kyousuke's lover to his house so calmly, even after Kyousuke directly confronted him?

Red and Blue (Ch4)

Since high school is ending anyway, I should just tell him even though I've got no shot at having a relationship with him, is what I thought when I confessed to my friend, Aoi. To my surprise, Aoi said “Okay”. Wait, this means Aoi likes me, right? You don't know?! I've always known that Aoi is slow but I didn't expect him to be this slow about his feelings too...

Last Train Elegy (Ch5)

I’m meeting you at the terminal station

Kenji and Tama first met on a station platform. Tama's eyes were red from crying after being dumped by his boyfriend and he was curled up like a ball, just like a cat. Under his watchful glare, Kenji actually thought that “love at first sight" really does exist. Even though Kenji falls more and more in love with him every time they meet, Tama still laughs and cries whenever he talks about his ex-boyfriend. Yet, suddenly, he kisses him...

“It’s because I like you that I want you to cheer you on."

"I want you to know that such kindness exists, too."

When gorgeous transfer student Kazuma moves in to the ramshackle Akeboshi High Boys' Dorm #2, he immediately attracts the interest of resident airhead-with-a-heart-of-gold Masaji. Kazuma relentlessly rebuffs and abuses the other boy, but Masaji refuses to give up! After all, he just wants to be friends. Determined (for some reason?) to keep trying, Masaji chips away at Kazuma's abrasive aura, but could this sweet-and-sour feeling be what he thinks it is?! A super go-get-'em boy and a hot-and-cold beauty in a coming-of-age rom-com that includes a cast of colorful characters!

Takaharu has fallen in love at first sight with a girl named Mifuyu, who has named herself a "snow maiden" who can't fall in love. What will it take for Takaharu to melt her frozen heart?