From Which Scanlations:

Shiharu is a high-school student who loves kids, lives in an orphanage, and works at a daycare... Until the handsome uncle of two-year-old twins offers her a raise if she'll be their babysitter. Often relying on memories of her mother's actions for guidance, Shiharu quickly finds herself falling in love with her new makeshift family.

From Viz:

After orphan Teru Kurebayashi loses her beloved older brother, she finds solace in the messages she exchanges with Daisy, an enigmatic figure who can only be reached through the cell phone her brother left her. Meanwhile, Teru meets and forms a strange friendship with mysterious Tasuku Kurosaki, her school's janitor. For some reason, Kurosaki always seems to be around whenever Teru needs help which leads Teru to wonder: Could Daisy be a lot closer than she thinks?

As the mystery of Daisy unfolds, Teru also discovers that there may have been a lot more to the life and death of her brother than she ever dreamed . . . and that the man she thought was her friend just might have all the answers.

Konno Masaki just recently moved to Tagami and has already stirred up a mess. The goddess of the land, Noshiro, lives alongside the people of the city and for some reason chooses Masaki as her mate. Without thinking about the consequences, he agrees to her demands only to regret it. At the same time, Towada Yuki, the only daughter of the wealthy family of Tagami, falls in love with Masaki and asks him to be her boyfriend. And like a fool, he agrees. Now Masaki has to juggle two of the most prominent members of the community, the goddess of the land and the member of the Tagami family, and prevent it from blowing up in his face.

When Donut meets Mew, their encounter turns out to be more than just a coincidence, as their closeness slowly turns into something more intimate. Lily Love... is a story between two very different people, who hand and hand, learn to trust each other in order to nurture and protect the love they share regardless of position, distance, or gender. If finding true love already seems next to impossible, how much harder will it be to keep it?

A girl with a strange mother who brings home a new father and stepbrother. She loves photography, and her new stepfather is a photographer. They begin living together and have to overcome many difficulties.

Shuka, princess of the kingdom of Kouka, was raised in a very sheltered environment in an inner palace. As her fifteenth birthday approaches, her father and brothers die one by one because of a sudden epidemic, and the kingdom has to find a new king (or queen)...! Supported by Zen, a military officer who serves as her retainer, Shuka must face the challenge of a role she knows little about...

Two months after coming to Tokyo, Iku is enjoying otaku life, but something mysterious is happening to him: He's started to see ghosts!

One particular ghost - who's always standing on top of the pedestrian bridge at night - catches his interest, but he studiously ignores it... Until one day the guy turns up at his apartment holding a doujin Iku had dropped. He says his name is Seo Mimori, and seeing as he's a lost soul with nowhere to go, Iku doesn't really resist when he "moves in."

But then a shocking secret about Mimori's death is revealed...

A collection of stories:

- Datsu-Eva!
A man finds himself in a place he doesn't remember, nor does he remember who he himself is. There, he runs into a girl.

- Hitomi to Goku (Hitomi and Goku)

From MangaHelpers:
In the 1950s, an old woman was brutally murdered on the face of a clock tower by her adopted daughter. Two years later, the clock tower is known as the 'ghost tower' and it is supposedly haunted. Through an unusual series of events, a young NEET man named Amano Taichi is attacked by someone or something in the same clock tower, and finds himself bound to the clock face to be killed in the same way as the old woman. Luckily for Amano, he doesn't meet the same fate. He's rescued by a mysterious person who claims his name is Tetsuo. He is searching for a treasure that is connected with the ghost tower, and he wants Taichi to be his partner. Taichi, whose life has mostly consisted of poverty, loneliness, and pornography, is enticed by the idea of gaining extreme wealth. He's further convinced when a house fire leaves him without a home and depends on Tetsuo's charity. The adventure is going to be very dangerous, since the same 'enemies' who attacked Taichi before seem certain to try something again! Not to mention, Taichi really knows very little about his new partner.

It's an age where aliens, monsters and other dangers threaten the Earth, and various heroes have risen to protect it. Supporting these heroes are the human defense forces, of which the sisters Kitajishi Miyuki and Yuri are a part. Specifically, their office is for hero consultation, and they help heroes solve their problems, but they also help evacuation procedures during emergencies. Yuri was formerly an immensely powerful and popular magic girl, but now she helps protect people in a more human way. In their first case, they consult with a hero who has lost his powers, and is trying to find a way to live as an ordinary human.

Billy Bat is a comic-in-a-comic and the real protagonist is a Japanese-American artist named Kevin Yamagata who draws Billy Bat for "Marble Comics".
Shortly after they transition to the artist in his studio with his assistant, two actual detectives, who look like Laurel and Hardy in Dick Tracy era suits and trench coats, knock on the door and appropriate Kevin's room for the purpose of conducting surveillance on a room in an adjacent building. One of the detectives, the skinny “Laurel”, sees Kevin's work and it turns out he's a Billy Bat fan. The other chubby "Hardy" detective picks up a page and says that the characters look familiar and accuses Kevin of translating an old "Jap" comic.
As Hardy remembers the comic he thinks Kevin is ripping off, we make another Urasawaesque time jump to 1949 Tokyo.

Note: Won the Max und Moritz Prize for "Best international Comic" in 2014.

Everything in this world is my enemy. This kind of world is worthless. A boy, who is called a demon with no human heart, breathes, lives and imagines. But what is the pounding in his heart when he heard he is going to save the world? That’s not his wish, though…

From Yen Press:
No matter how much the times change, bullied kids aren’t going anywhere. And fat junior high school student Haruyuki is one of them. But one day, Haruyuki encounters Kuroyukihime, the most beautiful and elegant girl at school, who gives him a mysterious program: “Brain Burst”…and the secret of the “Accelerated World.” He may be at the bottom of the food chain at school, but Haruyuki and his destiny begin to “accelerate” with incredible speed in the virtual realm as he aims for the top.

After Ryou's father remarries, he's not sure what to do with three new brothers and a stepmother at the age of 19. As he comes to appreciate his happy new home and family the glue holding them together starts to come undone. How will these four brothers weather tragedy after tragedy and stay together?

As a child, Kasama Ryuuji watched his parents killed before his eyes by the rival, Yazuka gang. As a teenager, he finds the woman who raised him after the death of his parents, raped and murdered by the same gang. With the lost of his loved ones, Ryuuji wants nothing more to do with the Yazuka. When everything seem lost, the kind and caring, Araki, who claims to be the brother of his adoptive mother appears. Ryuuji develops a special bond with Araki but how will Ryuuji react when he learns that Araki, in fact, is the only surviving member of the Kasama gang, who has devoted his life to protecting Ryuuji. Will Araki-san, the dragon, be able to keep Ryuuji safe, or will his enemies use the young man as a pawn against him? (from MegKF by Rogue11)

NOTE: Each Hana to Ryuu Soushuuhen volume compiles 4 doujinshi volumes.

Hana to Ryuu Soushuuhen 1 (1998)
#1 Chiri Isogu Hana
#2 Hei no Naka
#3 Ryuu no Tsume
#4 Futatsu no Saikai

Hana to Ryuu Soushuuhen 2 (2000)
#5 Shinjitsu wa Yami no Naka
#6 Yomigaeru Akumu
#7 Mienai Tobira
#8 Ryuu wo Karu Mono

Hana to Ryuu Soushuuhen 3 (2003)
#9 Hebi no Rasen
#10 Kienu Juujika
#11 Karamiau Kizuna
#12 Tsuki ga Michiru Toki

Hana to Ryuu Soushuuhen 4 (2006)
#13 Kaiko to Zouo
#14 Kioku no Kakusei
#15 Aizou no Yukue
#16 Hebi no Doukoku

Hana to Ryuu Soushuuhen 5 (2007)
#17 Ai to Yami no Hazama de
#18 Yume no Mahoroba
#19 Matoitsuku Bourei
#20 Tamashii no Doukoku

#21 Tomurai no Hana (2009)
#22 Kibou no Akari (2009)
#23 Tabidachi (2010)

From the Outerworld Scans website:

Tetsushi (a 5th grader delinquent who rules over the students of Jouin elementary), Ryuuchin (Tetsushi's right hand man) and Tsuda (their sometimes-ally), are known to everyone in town as the "three evil prankster kings."

In a creepy pharmacy located out-of-town, the boys meet an old man who bestows a strange and other-worldly power upon them. Soon after, our 3 young pranksters find themselves battling a variety of ghosts and demons...!?

From Bliss:

One summer day, a fifth grade boy name Susumu suddenly appear before former biker gang member now current host club host, Okita Yamato and said that Okita is his father! Afraid of being a bad influence on his son, Yamato transforms himself into a daytime working parcel delivery man. But being a father is harder than it seems as Yamato struggles to become a good role model for his son.

Iori Shijima, an ordinary high school student blessed with a good, common life. He has a cute childhood friend, lots of friends he can rely on, and a nice and beautiful mother. Additionally, his grades are good and he has a solid future plan. However, one day "transcendent beings" called ĀTRAIL appear on Earth, and Iori's everyday live crumbles as he learns about the secrets of another world and the meaning to his own existence.

Collection of short stories.

A collection of stories:

From Lililicious:

1. Cosmos no Saku Niwa (The Cosmos Garden)

2. Goshujin-sama to Issho (Together with Master)
A "PET" is a love animal, created for the express purpose of pleasing their master. This is a short story of how one PET became endeared to her master, and vice versa.

3. Kuchinashi (Gardenia)

4. Sakura Buntsuu (The Cherry Tree Correspondence)
A sweet story set in the Taisho period.

5. Hare ni Mau Yuki (Snowflakes Fluttering Down Through the Clear Sky)
A love story about a princess and a knight.

6. Hoshi ni Negai o (Wishing on a Star)
Two friends deal with grief.

7. Sakura Buntsuu - After Story (The Cherry Tree Correspondence - After Story)
Another pair of girls begins exchanging letters.