From Japanzai: Moe War is a comedic oneshot within which a popular girl tries to act “moe” to get out of repaying an otaku. As she soon realizes, however, she doesn’t understand moe at all.

In the Mirai no Kioku series:

V.1 - Mirai no Kioku

V.2 - Kaze no Yukue

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From Deux Press:
Kento Kumagaya wishes for just one simple thing: to have a happy family with the ideal housewife, loving kids, and kind grandparents all living together, happily ever after. Life, however, has other plans. Enter Akira Kazuki, a smart, beautiful and unrestrained gay man who shatters Kento’s dream with a single night of wild and passionate homosexual sex. This is a romantic, sweet and funny story between two different people (in more ways than one) who unexpectedly find the same future together.

Note: also contains an unrelated oneshot called "Winter Rabbit" in the English release by Deux Press.

V. Koibito no Namae

1. Lover's Name
One night, Ei Ariga the private detective was hit on by an obnoxious stranger whilst out working on a case handled by his father's agency. Then the timid and very polite Ryouichirou, who is a dead-ringer for the playboy stranger, turns up at the agency and tries to engage their services to find out why and how someone is breaking and entering his apartment. Ei-kun discovers that the nasty, violent and annoying carbon copy is called Naruaki and things get extremely complicated when he starts falling in love with both Ryouichirou and Naruaki... Lover's Name is also found in Double Lover - Koibito no Namae

2. Saikou no Kimi
The oneshot is also found in Saikou no Kimi.

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V. Double Lover - Koibito no Namae

2. Kimochi no Yukue
It's been three years since Kirima walked away from his relationship with Kou. Kou's obsessive love was what sent Kirima running in the first place, and now that he has Kirima back he's not about to let him escape again...

Yaegaki Meguru's next door neighbor is unique, to say the least. They are the Kusanagi ninja lineage, and their son, Kanata, has been her classmate and friend since their younger years. Kanata would always get into trouble or be late to class due to his ninja upbringings. Every morning, Meguru would have to pull him away from his training with his father. Most days, he's late to class anyway. In the past, they both vowed to never hide secrets from each other, yet Kanata would not reveal the "true purpose of a ninja." Meguru understood the reason behind Kanata's secrecy regarding his ninja background when a powerful force is released inside their own school. Then, Kanata will reveal his true potential as a ninja.

From Day of the River:

A doting father finds out that his precious daughter has found herself a boyfriend. For any father, this news alone is hard enough to accept. However, when the boyfriend turns out to be a potential lying playboy, this father will stop at nothing to protect his little girl!

The story of Yukako Kamoto, an Instant Curry lover.

From Paperdolls Project: Ito's favorite author has been right around her corner all this time. But, he wasn't quite how she imagined he'd be. So, will romance still ultimately bloom between these two?

Yusuke Urameshi was a tough teen delinquent until one selfless act changed his life... by ending it. When he died saving a little kid from a speeding car, the afterlife didn't know what to do with him, so it gave him a second chance at life. Now, Yusuke is a ghost with a mission, performing good deeds at the behest of Botan, the ferrywoman of the River Styx, and Koenma, the pacifier-sucking judge of the dead.

Note: Won the Shogakukan Manga Award for shounen in 1993.

From Viz:
At first glance, Nina Sakura seems like a typical teenage girl. However, she's actually a transfer student from a witch school! Now enrolled in a Japanese middle school, Nina is hoping to improve her grades, make some friends, and practice love spells on her unsuspecting new classmates.

Shy Ayu Tateishi has just made a new friend at school. But this new friend, much to her surprise, is no ordinary classmate. Nina Sakura may look like a normal middle school girl, but she's got a big secret.
She's a witch.
Or, rather, she's studying to be a witch. And apparently, she's not doing her homework. Her spells are devastating in their ineffectiveness and often result in the most embarrassing situations for poor Ayu.
But things wouldn't be so bad if Nina's sorcery didn't make Ayu look silly in front of the one boy she secretly adores. All she wants is a simple love potion. What she gets, however, is a new best friend who almost flunked out of witch school!

Vowing never to separate from his childhood friend Hisame, Itsuki travels on the Tokaido with him in search of new adventures. Exterminating youkai along the way, they depend on each other to finish the job. What adventures lie in wait for our two protagonists?Sequel:> Toukaidou HISAME -Kagerou- ( http://mangapark.com/search?q=toukaidou-hisame-kagerou )

This is a Thai comic.

Mayama Haruki and Himemiya Tsukiko have been childhood friends and neighbors for as long as they can remember, but after a girls-only meeting in fourth grade, Himemiya distanced herself from Mayama. Now in their 2nd year of middle school, Mayama has become an ero-freak who specializes in harassing Himemiya. Determined to unravel the greatest secret of girls, what happens on "that day", Mayama follows Himemiya and uncovers.

Kanon Miura is a freshman in high school who belongs to the student council. Everything is peaceful until ping-pong club president Kaede Tamaki intrudes on the student council, which somehow results in all of the members joining the ping-pong club... Follow the adventures of give cute girls from both the student council and ping-pong club in this slice-of-life four-panel manga!

Bushido Academy gathers people who are descendants of the military commanders from the Warring States Period to fight for leadership. As Takeda Shingen's descendant, Takeda Tetsuro is forced to join Bushido Academy. Joining him is Sanada Rieko, who is descended from Sanada Masayuki, a loyal retainer of Takeda. Can they unify everyone together in a school where various warlord students battle for control? The curtain rises on this magnificent picture scroll featuring a Warring States themed academy.

From Viz:
All high school freshman Airi Hoshina ever wanted was to someday live in a cozy home with a loving husband, and find joy in the little things in life. As a result, she makes it her daily mission to get to school on time because school legend has it that the longer one's non-tardy streak is, the better boyfriend one will find. But just when her daily routine is working like clockwork, an occurrence of fairytale proportions threatens to disrupt her grand plan.

Yukari wants nothing more than to make her parents happy by studying hard and getting into a good college. One afternoon, however, she is kidnapped by a group of self-styled fashion-obsessed artists who call themselves "Paradise Kiss." Yukari suddenly finds herself flung into the roller-coaster life of the fashion world, guided by George, art-snob extraordinaire. In a glamorous makeover of body, mind and soul, she is turned from a hapless bookworm into her friends' own exclusive clothing model.

In this manga we meet characters from Gokinjo Monogatari like Mikako (and her little sister, Miwako - she's in the "ParaKiss" group) and Arashi's father (only a poster, but still), as well as new characters like Isabella.

From Nakama:

A strange household made up of two divorced fathers with a child each. As the children get older, they start to become aware of the strangeness of their own household…?! Following the popular BL about fathers with children, “Kodzure Ookami”, the children become the main characters as we follow their growth, in this long-awaited next volume! Also, a straight-laced tax counselor who is also an idol otaku, and a show pub owner of questionable identity (only half Japanese and also an onee); their fateful meeting and subsequent circumstances. This is the well worth-reading 3rd compilation in the series of this author.

Noragami Special,tells the story of the encounter between Yato and Magatsukami Rabou.> Spin-off of Noragami( http://www.batoto.net/comic/_/comics/noragami-r5014 )

Friendship blossoming to love between a high school girl who tries extra hard to make up for her lack of height and a middle school boy who just looks too tall to be his real age.

All Miki Koishikawa wanted was an ordinary family and that's exactly what she had until her parents decided to move in with another couple (as in switching spouses!) and turned Miki's world upside down. Now she lives in a house with four parents and her totally cute stepbrother, Yuu. It's bad enough being brought into her parents' strange soap opera, but Miki will star in a soap of her own as she deals with friends having affairs, trying to survive in school and ending up torn between her long-time crush, Ginta, and her new stepbrother!