Hiiro, Reiichi

Ayase kai almost drowns in the ocean but is saved by a merman. He thought it is all a bizare dream, until the merman shows up again at his company, this time with legs. He claims to be a rich prince and Ayase's new boss but thats not all, his true goal is to make Ayase his mate!
(from B-U)

Wild Fish

ワイルドフィッシュ

Yamato, Nase

A collection of four stories.

1. Magical Travel Boy (ch1-3): an alien boy with magical powers becomes lost while on a school excursion to planet Earth. A local street magician takes him in, but he has a dangerous secret of his own.

2. Love Hospital (ch4): a chatty student is sent to hospital with a broken leg. The patient in the adjacent bed is a student as well, yet refuses to talk to anyone at all.

3. Suki de Warui ka!! [Wrong to Like You!!] (ch5): a shy high school student is a closet otaku who loves drawing manga based on his favorite shows. One day he is horrified when another student happens to see the artwork in his notebook.

4. Foul na Kankei (ch6)

(from B-U)

Magical★Travel Boy

マジカル★トラベルBOY

Asano, Kaori

Humorous erotic story about two girls (Non and Melon) who end up in the past as a result of the cataclysms that happen when Non gets off thinking about her love.

Vanity Angel

YEOMRA

Suwon is an S-class Guide with a notorious temper and a strict "no-touching" rule. After beating up one too many Espers who tried to get handsy, he's given one last chance to save his career: a month-long live-in contract with the powerful Esper Gong Ian. There's just one problem. Ian is the same pervert Suwon caught grinding against him on the bus earlier that day! To make matters worse, Ian isn't just a creep, but a massive masochist who gets off on Suwon's violence. Suwon came to guide him, but he might end up beating him into bliss instead.

(Source: Lezhin Entertainment)

Guiding Me Mad

환장의 가이딩

Fujiko, Fujio F.

"Doraemon" is a series about a robotic cat named Doraemon, who travels back in time from the 22nd century to help a schoolboy named Nobita Nobi. Aside from the normal manga books, their great adventures to different places are specially described in Doraemon Long Stories books.

(Source: MU)

Daichouhen Doraemon

大長編ドラえもん

Fujishima, Kousuke

Alone in his dorm room one Saturday night (a frequent occurrence, to be honest), young Keiichi Morisato accidentally dials a wrong number that will literally change his life. You see, he inadvertently reaches the Goddess Technical Help Line, and a goddess is dispatched to grant him one wish.

The lovely young Belldandy informs him that he may have one wish - a wish for virtually anything in the world. In disbelief, Keiichi opts for a wish he believes will confound the system (and will prove that Belldandy has no particular wish-granting power): he wishes that Belldandy would stay with him always.

The power of this wish almost rips the fabric of time and space but it is ultimately granted. But of course such a wish has unforseen consequences, including the fact that Keiichi lives in a guys-only dorm. When his roommates return to find him with a woman on the premises, he is immediately tossed out on to the street. But the wish also has other unexpected side effects - such as when Keiichi and Belldandy are in peril of being separated, a motorcycle is suddenly repaired so that they can travel together.

(Source: Dark Horse)

Aa! Megami-sama!

Oh! My Goddess

ああっ女神さまっ

Yamada, Yugi

Aida, Saki

Izumi is a dedicated single parent haunted by his past while trying hard to make a future for him and his son. First suffering the crippling loss of his closest friend after their junior high graduation in what was an ego destroying personal rejection of their friendship, he then went on to lose his young wife due to complications of childbirth. Thankfully, his seemingly tough yakuza brother in law, Sawaragi, was there to lend a hand when he needed it most. Things seem to be going swimmingly well until his childhood friend makes a sudden reappearance, throwing Izumi into emotional turmoil. Just what is Takatsudo playing at, wanting to hang out like close friends again after all this time? Izumi's determined to find out just what is going on before his heart is crushed beyond repair this time...

(Source: DMG)

Taka ga Koi Daro

It's Only Love

たかが恋だろ

Manabe, Jouji

It`s face-to-face confrontation when Kahm stares down her father and refuses to end her relationship with Tetsuya. In retaliation, her father sends a punitive fleet to Earth -- with orders not only to crush the rebellion but to annihilate the entire solar system!

(Source: Amazon)

Outlanders

アウトランダーズ

Motoni, Modoru

A story about two men that have been best friends for years, knowing the fact that they have feelings for each other, and ignoring it. They discovered it on their college days and settled the matter with a time limit; if they hold the same desire years later they will do something about it. Now both of them have girlfriends, but it seems that their desires only grew stronger, in spite of loving their women. So, what happens when their girlfriends agree to make them indulge in their desires?, and have a relationship only between the limits that desire allows them...

This is a bet, to know what is stronger, love or desire?

(Source: Queen2408)

Koi ga Bokura wo Yurusu Hani

恋が僕らを許す範囲

Yasuko

A collection of short stories:

Mayonaka Express (Midnight Express)
Getsuyoubi wa Himitsu no Romance (Monday is a Secret Romance)
Daydream
2-nen G-gumi Romeo to Juliet! (Class 2-G's Romeo and Juliet!)

Mayonaka Express

真夜中エクスプレス

Morozumi, Junka

A collection of short manga stories by various artists based on the PS2 video game, Suikoden 5.

Gensou Suikoden V Anthology

Suikoden 5 Anthology

幻想水滸伝V - アンソロジーコミック

Takagi, Ryo

A spin-off oneshot of Ousama Game, involving, yet another Prince (5th) ... and, of course, a Pirate... 
(Source: DokiDoki)

12 Manga Like Rapunzel