In the Nacchan no Romantic Love series:
V.1 - Kimi wa Ima mo Kimi o (僕は今も君を)
V.2 - Naisho de Kiss o Shiyou (内緒でキスをしよう)
V.3 - Nigeru Natsu (逃げる夏) (Summer of Escape)
A collection of short stories.
The title story focuses around Chihaya, who has a crush on Morisaki. However, the flower arranging school she inherited from her father isn't doing well, and her step-mother wants her to marry into another school to revitalize it. Chihaya disobeys her step-mother and runs away, only to be later rescued by Morisaki. Unwilling to go back home, Chihaya starts to spend the summer at Morisaki's place, painfully aware of the situation... though Morisaki doesn't even seem to notice.
- Storm in Heaven

From FairGame:
"Ever since that day, my love has been in a sleep. I'll be dreaming until I'll wake up with your kiss"
Alice is a bright high schooler who had been taking care of her father, her only family. she is beginning to grow feelings for Ryuu, who is a son of the owner of the hospital where Alice's father is at. One day her father's condition drastically changed and she became alone in the world. She decides to join a project called venus project, and their unimaginable secret was...

From Manga Abyss :

1-2. Sleepless Butterfly
The Kinase village is being called “a village protected by god”. Kaya and Rin were raised in a village that’s surrounded by a deep forest. Although they are brother and sister they aren’t related by blood. However, they get along well despite this. Although they are living together peacefully but there is a secret kept from everyone~!?

3. Kaze ni Hana ni Kimi ni
Erika meets Ryousuke, a boy from Tokyo that had a strong passion of swimming until he injured his shoulder, forcing him to abstain from swimming. Ryousuke, having loved the sea for a really long time, becomes really sad, and has lost all hope in finding another way to live. Erika wants to help him...
- Intercross

4. Monochrome World -
Ever since a certain Christmas Day when she was little, Jun has seen the world as Black and White. Even after ten years, her eyes are still like that. She doesn't want to tell anyone about her secret because she's already been "betrayed" once by a friend. After that, they were separated. Little did she know of the suprises in store for her...

5. Alice

Sanako is a 10-year-old girl who lives with her father in Tokyo. Inside the gray building which is their home, they have created a sky garden full of huge, green potted plants. In this city oasis, kindhearted people meet…

Eri Yukizaki, is a girl locked in battle with a chain-saw wielding incantation of true evil. But like the demons that boil inside her heart, the 'Chainsaw Man' doesn't seem to die no matter how much she stabs him. As she fights, a young man, Yamamoto watches, love-struck, wishing he could be more than just her useless bicycle courier.
An action-packed romance, digging into the human psyche, exploring the demons that buries us in sadness and misery.

Do you have a song that has left an impact on your heart?
Do you have a secret you can't tell anyone?
A slightly heartrending love story.

“Ever since I was a little girl, I’ve been infatuated with the “other side”; the world of splendor. Yes, I wanted to become one of those glittering stars. And so, my dream has come true. But now…All I want is to be beloved by someone.”

When she was young, Yukino Miyashita wanted, more than anything else to become an idol. After accomplishing her dream, however, the idol group she was part of failed to sell, and she returned to school, facing alienation from her peers. Now, at age 18, Yukino is living alone in Tokyo, half-heartedly trying to start a new life as a talent manager, while not quite able to put her idol days behind her. She meets Setsuko, a songwriter who also once belonged to a failed idol group. The romance sparked by her encounter with Setsuko causes Yukino to reevaluate her own life.

A story about two classmates, Sahoko and Rio. Rio is depressed and self-abusive due to lack of loving relationships with her "family" -- which consists of her negligent father, overbearing, selfish stepmother and stepbrother; and Sahoko soon becomes her only comfort in life. Sahoko on her part has a frigid relationship with her overprotective parents, and lives with her aunt by consequence.

Collection of short stories:

1. Ikenie no Koiwazurai (Oblation Love)
Suzuki Noriko is this year's Freshman Oblation. For the sake of peace for all freshman, she must be sacrificed! What's more this has been ordained by the most troublesome person in school, Sakikimi!

2. Daisuki na Hito, Sayonara

3. Binetsu Snow
Rui is eagerly awaiting a visit from her cousin Ricchan, unfortunately the girl she was expecting turns out to be a boy! Rui is afraid of men and she's expected to share a house with Ricchan?

4. Dare nimo Ienai

5. Mayonaka no Kichiku Shounen

From Wildflower Scans:

When her father is laid off and the family is facing tough times, middle-schooler Kousaka Yayoi selflessly offers to give up her dreams of being a high school student to contribute to the household. Fast forward to a few years later, where Yayoi is about to be given a full-time position at her office job—the only problem is that it requires a high school education! What awaits the 21-year-old high schooler at Hoshinomiya Academy?

A collection of short stories. Note that the vast majority of these stories contain heterosexual romance themes. A few stories explore transgender issues, but it's a stretch to call them shounen-ai or BL romances. This series demographic is josei.

Le théâtre de A
1.Oeufs D'ange - Tenshi no Tamago
A man is asked by a young painter to be her model.

2. Velvet Going Underground
A doll becomes a super idol. Hijinks ensue.

3. Childhood's End
Alastair runs away and meets the Rabbit.

4. Bite Me Something
Allistaire followed Mr. Rabbit all the way to Wonderland. Will he be able to find him among the crowd?

5. Long Along Alonging
A girl asks a vampire to be his apprentice. But what is her motive?

6. Till Dawn
In a dark tower, a caged voice is singing until a hunted man enters the darkness.

7. Leçon un
Sequel to Long Along Alonging.

8. My Skin on My Back

9. Highland Walker
Sequel to Leçon un.

10. Perfect World
The story of a young wife whose husband is infected with a fatal disease called Flower-Blossomitis.

11. Perfect Lady
Sequel to Perfect World and drawn especially for this book.

12-13. Looks Like a Teaspoon
A boy named Allistaire is often teased at his all-boys school. One night he dresses like a girl and stumbles upon the boy who often bullies him, Simon. Allistaire runs off into a tower and as Simon runs after him, we see the sign "Welcome to Wonderland" hanging by the tower's door.

14. The Pearl Blue Story
Do you believe in mermaids? Coggy, a young boy finds a mysterious lady laying down near the shore of the beach. He brings her home to help her.

15. I Am a Piano
A piano tells the story of her life and the people she encounters.

16. Parade

Le théâtre de B
1. Noël
A short story about a holiday romance.

2. Teddy Bear Satsujin Jiken (The Teddy Bear Murder Case)
Four murders have taken place at an all girl school. Lying beside each of the victim was a teddy bear with one missing limb.

3. Yonshimai Satsujin Jiken

4. A is for Alice
Alastair, a grown man, is off to follow the Rabbit once again to return to Wonderland.

5. Nedai no Musume Atelier no Musume (The Bedroom Girl, The Sculpture Room Girl)
A story about a girl in her death bed finding another chance in life in the body of a doll.

6. B&W (Black&White)
A story about a boy waiting for his sister.

7. Le Jardin du thé (The Tea Garden)
A mysterious story about a poor young man who orders a kind of tea called Huan Ying – “The Illusion”.

8-9. Free Fitting for Her
A priest and his captured vampire must save a naive and selfish young girl from the murderous desires of a Lolicon. But perhaps this girl isn't all that she seems.

10. Rose Dusk, Pale Moon

11. Hello, My Sister

12. The Happy Prince

13. Welcome to Wonderland
Simon, Alastair's old classmate, is now a grown man who bumps into his childhood Wonderland traveller.

ShoujoHearts:

Kanna is an office lady who is at a critical point in her career. For some reason, she is assigned to receive training from the dull and plain Haruki...?

From Izumo no Ryuu:
After being sealed in a sword for 800 years, the master of all demons is released, and taking the body of a human to reek havoc on the world again. Jyuzo must now retrieve that body, which is that of his own brother, and stop the demon's schemes.

All Yoriko could remember from the night before was the red blood, the red moon, and an exceedingly bewitching red eye... The next day during class, being on the verge of remembering leaves her in a sickened state, and her classmate Kirin suggests she take a nap in the nurse's office. When Yoriko arrives, she notices nobody is around, so she decides to make use of the empty bed.

While resting, the absent nurse returns to the office to finish the job she had failed the night before: suck Yoriko clean of blood. In the middle of the struggle, Kirin comes to save poor Yoriko from the demon nurse.

Turns out Kirin and her brother Koryu are "oni."

From Aerandria Scans:

My mama is in heaven, but… I have my sister!
Hinako is a high school student who has a lot of things that she wants to do, but for her cute little sister, she will become a mother!

From Aerandria Scans:

Story 1: Sweet Tear is the Flavor of Love
After a painful experience in love, Tani Rika started to have a cynical view of love. She falls in love easily, confesses her love easily, but the moment the guy tells her that he loves her, she dumps him. This time, her new target is Tanabe-sensei, a teacher at the cram school she’s going to. Making him fall for her is just another game to Rika - or so she thought, but she started to develop feelings that she thought she had forgotten a long time ago...

Story 2: Altair's Love Letter
Sueo, a countryside girl, becomes friends with Tsutsui-kun, the lonely city boy. After that, every summer he goes to see her, without fail. Suddenly, he doesn't show up, for three years! She sends him letters, but he doesn't reply. What's going on?!

Story 3: The Boy from the Sleeping Country
Matsuri, who has been single her whole life, is on her way home from school, when she falls down with her bicycle. She's 'helped' by a mysterious boy, who's at that place everyday... He says he's there everyday because he loves that place, but... is it really the only reason?

Collection of shoujo-ai oneshots found in Yuri Hime and Yuri Shimai. 1. Akai Kasa, Shiroi Kasa (Red Umbrella, White Umbrella) - About two friends and their ideas about femininity. 2. Nuigurumi no Harawata (Stuff Animals' Insides) 3. Michikusa (Weeds on the Wayside) - About a girl who's pretending she likes girls. 4. Tiger Lily - An old woman remembers the past. A helpful bit of information: the two main characters are drawn as their younger selves even in the scenes that take place in the present. 5. Short Cut - If imitation is the sincerest form of flattery, then the main character of Takahashi Mako's "Short Cut" is certainly being paid a great compliment... unfortunately, she doesn't see it that way. 6. Koorizatou no Kakera 7. Natsu no Mayu - About a girl who admires her friend. Also deals with coming-of-age issues a bit. 8. Sandals - About a girl who has a crush on her best friend. 9. Kanojo no Tonari (Next to Her) 10. Otome Cake (Maidens' Cake)

Financial conglomerate Asahi, which is worth 8 trillion yen, has Hinaka as the only daughter of the head of the family, who is on the verge of death. Hinaka keeps fighting off all the looming assassins, but what will happen when she's confronted with the "strongest professional hitman," Kyouma?

The super humans start their move to create a coup d'etat in Japan. The collective goup of these super humans has a group name "Omega Tribe". The plan for the coup d'etat brings multiple problems at different levels. What will happen to the politics of Japan and the coutry itself? What are the goals of the Omega Tribe? Who's the enemy? Confusion continues to arise as this story goes on...

Ten years ago, they took him. He doesn't know who. For ten years he has been confined in a private prison. He doesn't know why. For ten years his only contact with the outside world has been a television set and the voices of his jailers. In time, he lost himself. He changed...transformed himself into something else...something hard...something lethal.Suddenly, one day his incarceration ends, again without explanation. He is sedated, stuffed inside a trunk, and dumped in a park. When he awakes, he is free to reclaim what's left of his life...and what's left is revenge.Manga that inspired hit Korean movie Old Boy!