From Nakama:

Nakano Atsushi, first-year high-school student who didn't open his heart to anybody except his much-loved older sister, even while thinking of putting together a band, isolated himself. His older sister, worried for the obstinate Atsushi, got the cooperation of her fellow student Takase Yuuichi.
The sound of the guitar played by Takase, who takes part in an indie band, is in tune with Atsushi's heart and he was made prisoner by Takase's invite “I'd like you to sing together with me”, just like a love confession... With a lot of material drawn for the occasion, the wandering of a hazardous love.

From Chibi Manga:
A girl who dreams of fated meetings - Kizuna. The one she met in a suspicious western-style house, the "Yuurei Library", was a good-looking but demon-like young man - Ruu. On top of that, Ruu has an unbelievable secret...! A cursed love hidden in the masterpiece "Romeo and Juliet". Searching for a new ending, the gears of fate have started to move--!?

From Entropy:
A volume of one-shots from the author of Perfect Girl Evolution.

From Covenant of Darkness:

For 10 years Saika has done everything she can to get close to her love Keishi. She followed him to the same high school, joined the same committees, and even changed her outward personality to become the right match for Keishi. One day, looking for Keishi in the special section of the school, she runs into the school's trouble-maker Kirisaki Shin. As he begins to bully her, her true personality comes out: loud-mouthed and violent. To her dismay, Kirisaki decides that he likes that kind of girl. Lovey Dovey is the story of Saika's trials and tribulations in a love triangle at a school where "Love is Prohibited."

An Na mentions to her mother that she wants to go and find her dad, her mom soon decides to leave and go volunteer in South Africa. An Na's mom leaves their store to her half brother Aaron who she feels some resentment for. Now when she finally finds information on the wearabouts of her dad what will happen when the only clue is a kid who won't talk?

Update: After a long hiatus the author finally picked up the series again.

When Fujii Nanami comes across a group of delinquents beating up another boy, her first instinct is to run away. But forgetting what she saw is harder than it seems, and when she goes back to treat his wounds, she finds her fear of him beginning to fade as an unlikely friendship springs up between them...

Ryou Jinnou is the chairman of a big company. Having succeeded his late father very young, he’s bored to death... And he chooses as a hobby the summoning of a demon with which he decides to have fun, whether the demon likes it or not! Ryou and Belial thus form a contract, which states Belial has to grant Ryou three wishes, whatever they may be...

A short sequel for Hana No Mizo Shiru portraying Misaki and Youichi's life after the events of the main plot.

Hundreds of years ago there was a battle of two beings on earth, one who calls themselves the 'Celestials' and another one which is known as the 'Darkseeds'. The Celestials won the battle but hundreds of years later the 'Darkseeds' who calls themselves the Puaka has started to rise again. It will be time before another battle begins. The Celestial king sent his warriors in search of the Puaka King to destroy the Puaka king before he could gather his army and rise against the Celestial King again. The story focuses on two of the warriors, the twin brother and sister Purnama and Suria in their journey to avoid another battle from starting. Inspired from the folklore of Southeast Asia.

1-3) Tsumasaki ni Kourozu
Iwai Arata was recommended by his professor to work part-time under a rather eccentric mycologist, Murota. The mycologist seemed hard to approach at first. But slowly as he got used to Iwai's presence, he became friendlier in his own way, showing Iwai a whole new world and giving him guidance with life. Though every day was fun and exciting, a sense of unease began to creep into Iwai's heart
- from Echochi Scans

4) Lingering Light (Tsumasaki ni Kourozu - Extra)

5) A Fish's Warmth
Hirotaka has a secret. When people fall asleep, he sees fishes swimming out of their bodies, wandering and playing, and going back when they awaken. But, the deeper one's secret is, the more solitary he becomes.

6) Excursion at Midnight (A Fish's Warmth - Extra)

7) August, End of Summer
When Haruhiko's grandfather dies, he stays behind in the old house for the memorial service. Left with regrets of lost time, a mysterious boy, and forty nine days in the countryside, Haruhiko finds himself accepting the oddities and discovering a beautiful place.

8) The Coming of Summer (August, End of Summer - Extra)

A spin off from the main story.

Shinobu is a school girl that possesses the powers of an exorcist. She lived with her grandfather, who has died. leaving his church to her. It was her grandfather that helped her control her power in order to use it in service to the church. Now that she is alone, an uncertain future is before her. But wait, the new transfer student, Rihito Konoe, suddenly declared that he is a disciple of her grandfather's and that he will be aiding and protecting her. What is strange is that she doesn't remember her grandfather having a disciple. Who is this person really?

Lots of Yuri & Shoujo-ai Oneshots

Volume 1:
• Girls of Sun and Sea (prequel to Midsummer Lovers)

She has a secret little notebook filled with her goals and thoughts of him..?

1-4) Yuzu has never had any girlfriend in his entire life. So when he starts going to college, he vows that he will find a beautiful girlfriend. But instead, he ends up getting the unwanted attention of 2 guys who are serious in making Yuzu their own (respectively). And so, what happens next?

5) Kou invites Yuzu for a photography trip.
Not scanlated.

Han Sae Lee is every girl’s dream—tall, dark, and handsome with a whole lot of attitude. He knows he’s the catch, but right now, he’s interested in catching a brazen, blond brat and teaching him a lesson or two... WAIT! How can one skinny (but very cute!) boy with sticky fingers (stole Han Sae’s wallet when they first met) give him the run-around so easily? There’s something about Moto that makes Han Sae see red—and not necessarily with anger.

Somehow, Moto has entered Han Sae’s life and shows no signs of leaving. What are Moto’s motives for befriending the “prince”? How far can this friendship go? These questions plague Han Sae as Moto becomes more important to him than he wants to admit. Looks like every girl’s dream man has some growing pains to go through…

After her great great grandfather (or great great great grandfather, our heroine can't seem to remember) is saved by a member of the Kumezaki family, a ninja by the name of Iroha dedicates her time to protecting the girl of the family, Sakura. The series revolves around their exploits.

A cute HaruChiha doujin

A series of "bishōjo"-centered manga booklets that were released weekly for a short time in Japan.

The manga would come packaged with a limited edition plastic-figure assembly kit, designed by Ohshima Yuki, of the featured character of the week:
Volume 1 - New! - Figure for volume 1 - Mion
Volume 2 - Two! - Figure for volume 2 - Ashita
Volume 3 - Hot! - Figure for volume 3 - Harusame
Volume 4 - Why!? - Figure for volume 4 - Sonome
Volume 5 - Bye! - Figure for volume 5 - Eruron
Bonus volume - eXtra! - Figure for bonus volume - Tetora

There is a conspicuous absence of the brothers (oniichan) of the title, as only the little girls are 'portrayed.