Kagura is a professional slacker with nothing but a part-time job and cram school to keep him company. When a little girl suddenly shows up in his house one day, he thinks things can't get any weirder... until she starts calling him "Daddy"! It's hard enough taking care of an ordinary child, but Kanna -- who doesn't speak his language, isn't from his dimension, and has hordes of evil minions hot on her heels -- is anything but ordinary!

It's Called Love is a romantic shoujo manga that consists of 5 short stories. Each story is done by a different author but in each you will experience the various expressions of love such as heartbreak, first kiss, etc. 1) To Be Your Number One by Ayu Watanabe 2) Sakura Tears by Keiko Suenobu 3) Special by Ikeda Yukio 4) Summer Love by Tsugumi 5) The Force of Dreams by Harui Yuna

The recently wed manga artist Kazama Ayami is drawing an essay on her true feelings about romance and marriage. She had minimal interaction with boys in her all girls school, but she got married with a boy she knew for a year, and now she must relive her embarrassing and pitiful memories for drawing her manga! Meanwhile, her rival manga artist is the boy she is about to marry, so will this become another embarrassing memory…!? This will be her challenge of appealing to other persons purer feelings!

From Fantasyshrine:

After his mother passed away, Kyousuke decided to live alone and transfer to another school. There he met a rather peculiar classmate named Kaname who’s unable to talk. Although Kaname cannot speak, he was able to somehow convey his feelings clearly through writing and facial expressions that made Kyousuke more drawn to him. However, Kaname’s cousin, Satoshi noticed the intimacy developing between the two which he could not approve… A sweet ardent, story of pure love unfolds…

Kugaya is a teenager who lives with his aunt, Sakuri.
The kendo coach at his high school, Narugami, has been after him to join the kendo team; but when he meets the new girl, Takemi, his life takes a supernatural turn and he is thrust into an epic battle with the demonic "Intruders".
Reincarnation... buried memories... the Holy Sword... "Himuka"... and the Clan of the Swordsmen... it's all too much for a high school student to bear!

From JShoujo Scans: Growing up on the wrong side of the tracks in Bend, Mississippi, Becky Lynn Lee doesn't have the luxury of dreaming. With an abusive father and a broken mother, she always thought that this was it. But after the ultimate betrayal, Becky Lynn can no longer live the nightmare. Determined never to go back, Becky Lynn escapes to Hollywood. As a photographer's assistant, she discovers a talent for spotting beauty and capturing the perfect shot. When the camera eventually turns on her, the awkward, shy Becky Lynn of her childhood disappears. But when the success she's achieved is threatened, Becky Lynn must find the strength to embrace her new identity and put the ugliness of her past behind her forever. Based on Erica Spindler's novel "RED"

From Broccoli:

Spirits known as kamui are thrown into chaos when the sacred spirit Okikurumi is taken from Atsuma's village, and the imbalance threatens to destroy Earth. Infused with the spirit of an ancient sword, Atsuma must leave his village to reclaim Okikurumi.

He encounters NOA, an organization of youths who wield the power of the kamui, and who may hold the key to Okikurumi. Atsuma is recruited into NOA by Sumire, a young woman with an empty soul who yearns for a miracle. Atsuma and his new companions must work together to find Okikurumi before the world is destroyed.

From Summer Rain:
Despite being the heir to a large business enterprise, Taichi Akamatsu wants to become a shoujo manga-ka and has just started living on his own in an old, run-down apartment. One day, Taichi was asked for help by the girl next door—her name was Midori. She reminded Taichi of “Midori,” his ex-girlfriend, but for some reason he still became interested in her.
This year marks the 10th anniversary of Ai Okaue’s debut as well as the release of her most recent work. Reading her work makes you want to fall in love again. A scramble romance comedy of friendship and love.

Girard and ViVi are special government agents known as "Right Arms" whose job is to seek and destroy people who have become infected.

In their world, a weird virus that turns people into monsters has run rampant. The only way humanity can survive is to keep tight control on the infected to prevent the spread of the virus. If the virus' symptoms appear, the person must be disposed of. It's a tough world where even children must sometimes be killed to give humanity as a whole a chance to survive.

Come join this game! You will have everything that you desire, or you will lose your own life. It's now or never!

Tetsunosuke Yamabuki enrolls in the police to follow in his fathers footsteps. Some events lead him to discover that his father might have had links with a secret branch called the death brigade, and he is led to enter it himself. Wacky adventures and hilarity ensues.

"The three of us sleep intertwined."
After a fateful encounter at a singles party, a young woman gets involved with twins – one gentle and the other rough. Which one will she choose... and who says she has to?

Meet Takumi, a worker in the citizens' department of city hall, and beloved idol of the office. However, he's lived his life avoiding interaction with others. But what happens when a boy comes strolling into his heart?

One-shot webcomic involving a girl, a train, and another person.

Yuu thought that love and romance were meaningless things... That is until she finds herself cross-dressing just to get a date with a cute girl. Can she keep up with her charade?

Your typical romance story between a girl (Konatsu Narumiya) and a guy...except that this guy changes into a pervy girl! He can only change into a girl during the night. Konatsu is the manager of the boys' basketball team, has a crush on the team captain. Unfortunately, the team captain is a complete jerk. When Konatsu confides in another team member, Haruki, about her troubles, their relationship grows closer. The only problem: Haruki is a nice ordinary boy by day, but a pervy girl by night!

From Nakama:

An employee at an excellent firm's real identity is actually as the family's ninja bodyguard. But his master is like a dim-witted princess. The "princess" always clings to him while he works and tells him "if you want to you can become my wife." He takes any chance he can to get close. The ninja always thinks "I'm not your sex slave!" but everytime he sees the "princess'" expression he is unable to resist and continues to sleep with him night after night. In order to separate the two of them, the higher ups have begun to quietly take action. Master and servant, this is a modern version of this kind of love story.

From Chibi Manga:

She was her best friend and he was her first love...she didn't plan to change that. Ayu and Kaho were friends since kindergarten. They were the exact opposite; and even if both them were cute, they hated men. But one day, Kaho found someone she loved. "why? I was the one in your heart before..."
"Let's play at football" said a boy that Ayu never saw before. But, she felt her heart beating so fast and hurting so hard. It was the beginning of her first love...

Includes oneshots:
...Suki
It happened by accident... my first kiss, with Naohara-kun... 6 years passed, but that awkward feeling didn't go away.

Zutto Zutto Daisuki (I Will Forever Love You)
In the winter of my second year of high school, I had an unforgettable love. I really, really like you very much...but at that time I couldn't protect you. I'm sorry Ema.

(from Baka-updates): This manga is about a girl named Mulan, who donned armor in her aged father's place and came to serve in the Sui Dynasty's expedition to Gao Ju Li (Korea). However, due to a revolt caused by Imperial corruption, there came an event which would greatly change the course of her fate!!