From Viz:

10th grader Yugi spent most of his time alone playing games--until he solved the Millennium Puzzle, a mysterious Egyptian artifact! Possessed by the puzzle, Yugi becomes Yu-Gi-Oh, the King of Games, and challenges evil-doers to the Shadow Games--weird games with high stakes and high risks! These graphic novels contain new stories not seen in the anime, including the origin of Yugi and his friends!

Notes: This is a section of the original Yu-Gi-Oh! series and contains the Duelist Kingdom and Battle City arcs. Originally just called Yu-Gi-Oh!, Viz renamed it to its current name.

This series continues in Yu-Gi-Oh! Millennium World

A gag comedy.
Ten-year-old Chiruru is a girl with supernatural powers; she can perform psychokinesis, teleportation, clairvoyance and even telepathy! Most people want to take advantage of her powers, but not her new friend Mirika. Together they explore Chiruru's abilities, but Mirika has a surprise of her own waiting at home...

An anthology of stories based on the Alice series.

Auna is a girl forced into servitude to a petulant princess who presents her with a furry fox cub. Soon afterwards, Auna embarks upon the adventure of a lifetime when she learns that fox is really an adventurous boy trapped by a magical spell! Before she knows it, the pistol-packing teen and her unlikely ally journey into a fantasy realm unlike anything you've ever seen!

Kusumi and Akari are friends. They will learn together the meaning of love.
Meanwhile Akari's sister is having a surprising conversation with her female co-worker Sasano Ayumu.

From Tokyopop:
Class rivals June and Lucia vie for the honor of being named the Queen of Light, entrusted with protecting the people from the King of Darkness. June is an attractive girl whose feisty, hot temper and general laziness may prevent her from receiving the crown. Lucia has a more regal quality and a strong desire to match, but she is always overshadowed by June. Will petty jealousies, love triangles, and one cute boy interfere with the Queen's royal duty?!

From Yen Press:

A young boy named Roxas whiles away the last days of his summer vacation with his three best friends in their quiet little home of Twilight Town. But all is not as it should be in this hamlet nestled between night and day. Strange things keep happening around Roxas, which always seem to involve mysterious creatures and he is plagued by dreams of a boy named Sora, whom he has never met. Bewildered, Roxas searches for answers. Will they lead him to Sora, Donald and Goofy?

One night, construction worker Makoto is dragged along to a gay bar after work and meets the effeminate bar worker, Shinobu. Shinobu, whose interests lie in foreign looking men, is immediately drawn to Makoto and thus a love and romance between these two polar opposites begin.
One day, Makoto comes to the bar dripping in blood…

Taken from Coffee Scans: A workplace romance in a bustling city, this is the story of busy people, leading equally busy lives. Between rookie Yang Xiaoyang, ‘leftover woman’ Qiao Wenwei, cool-headed Du Zhong, and outgoing Zhang Yu, will they be able to find love?

An older brother worry about his sloven little sister. Does he need to worry though?

International chain? Instant packaged cup-noodles? No chance! "Taishou" the cat is going to run a first-class noodle shop in this 4koma or die trying. But first, Taishou has to make ramen soup people can actually eat...! Will the taste improve? Can Taishou find hired help who will actually serve water, not just drink it? Could it be the Matrix Move will do the trick? And who is this new "cook" Taishou has hired...?

We all wish we could go back in time, to turn back the clock and fix the past. But in this reality, that simple wish brings about something deadly—demons that devour a person's time! It’s up to a group of strong warriors who fight using time manipulation to destroy these blights. Brought together under unique circumstances, Victor, Kiri, Mina, and Blaze have what it takes to maintain the balance of time as the chosen fighters—the Chronos Rulers.

Note: This is a Taiwanese manhua that Shueisha is publishing for free on its Shounen Jump+ website and app.

Junjou Romantica: Takahashi Misaki is suddenly having some unexpected and odd problems. What started as a need for some college entrance exam tutoring has somehow led him to being romanced by a suave older man who also happens to be his big brother’s best friend. Confused by all of his brand new emotions, Misaki struggles to deal with his suddenly very odd life. And if that wasn’t enough, his suitor, Usami Akihiko, has plenty of issues of his own. A man-child who decorates his room in giant teddy bears and toys, Usami is a famous novelist who also writes steamy boys’ love novels on the side. When Misaki cracks open one of these books and reads sentences like “Usami licks every inch of Misaki’s hot body”…well, let’s just say that all hell breaks loose. Plus it doesn't help with Usami claiming he's in love with him.

Junjou Egoist: Kamijou Hiroki is a broken man, consumed by unrequited love for his childhood friend, Usami Akihiko (the writer from Junjou Romantica). Along comes Kusama Nowaki, whose name "Nowaki" means "typhoon", an orphan working his way through life since middle school. Like the typhoon he is named for, he whirls into Hiroki's life and heart, blowing all resistance away before him.

Junjou Terrorist: As fate would have it, Miyagi Yoh (whom Hiroki is working with as assistant professor) and Takatsuki Shinobu, a high school student, cross paths. Bits of pieces start to link together from the first two stories. That aside, Miyagi, who has a sad hidden past in himself involving a relationship with his teacher, is faced with Shinobu, who just says whatever is on his mind. The wheel of destiny is beginning to turn once again...

Thanks to her parents' incompetence, Taeko is sent to live with an acquaintance of her father. But when she rings the bell of her new home, she's greeted at the door by her new roommate, a completely and utterly shameless nudist named Masuda. Why exactly is he presenting himself in the buff to an innocent high-school girl...? Of course, their shocking first meeting sends Taeko's 17-year-strong values tumbling to the ground! "Is he for real?!" "Am I going nuts?!" It's too late for tears, so Don't Cry, Girl - a hilarious teen comedy ♪!

Source: Jmanga

It also includes a second story called 3322. (Unscanlated)

Nominated for the 4th Manga Taisho in 2011.

From birth, Wang Fu is a human raised by the beast race, even though the others in the beast village never truly accepted him, Wang Fu still cares about the safety of his home. When the Black Star Race returns, something has awoken, forcing Wang Fu to step onto the journey to find his true self.

Continues where Tantei Gakuen Q ended two years later. They are still in Dan Detective School solving cases.

The start of a lovey dovey life together! Or it should've been, but Matsuri's now living together with her boyfriend's beloved cat Sayuri...!? The struggle for her boyfriend with her cat-in-law begins! Raws: http://sai-zen-sen.jp/comics/twi4/kareneko/

As Shin Youngwoo has had an unfortunate life and is now stuck carrying bricks on construction sites. He even had to do labor in the VR game, Satisfy!

However, luck would soon enter his hopeless life. His character, ‘Grid’, would discover the Northern End Cave for a quest, and in that place, he would find ‘Pagma’s Rare Book’ and become a legendary class player…

"I want to have a smile on me when I talk to you today."

Menhera-chan is a pessimistic girl.
Byoujaku-chan is a frail girl with a wild imagination and a love for BL.
Kenkou-kun is a normal boy, in body and mind.

This is the story of their dark and heartwarming daily life.