From Seraphic Deviltry:

A story where there’s no such thing as a good guy…or bad. Right in the middle of moral ambiguity, we have these two men, one who lives deceiving young boys to do what he wants, and the other one just seeking revenge, fighting fire with fire... How might this story end?

A volume of four terrifyingly witty novellas. Skin and Bone: Poor Taichi is bullied incessantly at school because of her weight problem, but she undertakes a diet from hell, which leaves her nothing more than skin and bone. The Red Satchel: Haruna's deathly appearance shocks her friends when she returns to school. She disappears again, leaving only her red school satchel and its gruesome contents. Two Sisters: Young, beautiful Ms. Numata is a popluar teacher, but her outer appearance hides a ghastly truth she has kept secret since birth. Caterpillar: No one can understand Mayuko's obsession with caterpillars, but everyone at school hates her for it. She is bullied relentlessly, but knows that her destiny lies in a different place.

The Hino Horror series:
Hino Horror Volume 1: The Red Snake (赤い蛇 Akai Hebi)
Hino Horror Volume 2: The Bug Boy (毒虫小僧 Dokumushi Kozou)
Hino Horror Volume 3: Oninbo and the Bugs from Hell (地獄虫を食う! 鬼んぼ Jigoku Mushi Woku! Oninbo)
Hino Horror Volume 4: Oninbo and the Bugs from Hell 2
Hino Horror Volume 5: The Living Corpse (死肉の男 Shiniku no Otoko)
Hino Horror Volume 6: Black Cat (黒猫の眼が闇に Kuroneko no Me ga Yami ni)
Hino Horror Volume 7: The Collection (M Collection)
Hino Horror Volume 8: The Collection 2
Hino Horror Volume 9: Ghost School (Ghost School (HINO Hideshi))
Hino Horror Volume 10: Death's Reflection
Hino Horror Volume 11: Gallery of Horrors (Kyoufu Gallery)
Hino Horror Volume 12: Mystique Mandala of Hell (Kaiki! Jigoku Mandara)
Hino Horror Volume 13: Zipangu Night
Hino Horror Volume 14: Skin and Bone

From Peccatore Sanctuary:

Nao, the vice-president of the public morals committee has one mission--to get Narumi, his junior with the bright blonde hair, to dye it a more sober color. But while Nao is doing his job Narumi manages to kiss him, leaving him confused and flustered. Finally, Narumi agrees to change the color of his hair, but only if Nao agrees to go out with him.

Kyouko Mogami lived solely for her childhood friend Shoutaro "Shou" Fuwa. She follows Shou to Tokyo so that he may realize his dream of becoming a famous singer. When his dream is realized, Kyouko overhears the truth behind his decision to bringing her with him: he was using her as a maid.
Shocked and enraged, Kyouko swears to take revenge by outdoing him in show business. With a new look and a new attitude, she joins LME, the agency where Ren Tsuruga (Shou's rival and the #1 actor of LME) works, in the hopes of achieving her goal of destroying Shou's pride.
Along the way, she discovers her true self, makes new friends (and enemies), and finds herself at the heart of some interesting situations that will change her life, and the lives of all others involved, forever.

Hamura is a sheltered and very friendly high school student. He has always admired Miyake from afar who is very reserved and troubled. An incident in the locker room has finally opened up a chance for Hamura to be friends with Miyake. But does Miyake want a friend... or could they even be friends? Between Miyake's troubled past, Hamura's jealous close friend and perverted tutor, how will these two make any type of relationship...

Iwakura Mitsumi always had big dreams, of leaving her small town, advancing to the top tier university, and then contributing to the country before retiring back to her home town. So focused is she to her goal that she is oblivious to all the other ways she comes up short, much to the chagrin and concern of her friends and family. Can a naive country girl make it in Tokyo?

Note: In 2023, this manga won the 47th Kodansha Manga Award in the general category.

Junior high school student Yamada hates bothersome things like studying, eating, and bathing. When he discovers he can jump through time, would he be able to find the way to a perfect life?

A girl gets a guy to wear her school uniform.

"What, isn't it fine to cling to you? As fellow models and girls." - "No... Though we're both models and girls... buuuut (>_<)"

Hinako has been a successful teen model for several years, when suddenly a new rising star appears: Mashiro Yuu. Cute, innocent and feminine - how can Hinako stay at the top of the fashion world? But what if the newcomer isn't what she seems to be..?

When the looming Cold War shrouded Japan, mysterious murders were reported there. The suspect was a man with a skull-like helmet and a cape and clothing as black as the inside of a grave.

Accompanied by a shape-shifting beast named Garo, the Skull Man terrified Japanese society—without giving the people a clear reason why.

They took his family, they took his face, and they took his soul.
Locked between the lethal but gorgeous assassin Maria and the mutant Spider Man, the Skull Man digs into the conspiracy that gave birth to his powers and those of his partner, Garo.
Haunted by his past, he will not let them stand in the way of his revenge.
( from Tokyopop )

Honda-san is at war - with business, with out-of-print books, and with people who love manga! Who knew there were so many laughs to be found at the manga counter of a bookstore?! These are the day-to-day happenings that take place at a certain bookstore where the love of manga is abundant.

From ADV: Jih-Ro is destined to become the conqueror of the land, but there is one problem—another man shares his fate. This other man will become the conqueror as a result of Jih-Ro’s death unless he can be found and stopped. A search must commence, one that will ultimately become a hunt, but Jih-Ro’s expedition will not be a lonely one. He stumbles upon a man called Il-Geum, who joins the future conqueror in his quest. Their meeting will prove to be more than a coincidence, though, as it becomes clear that Il-Geum is quite possibly the man Jih-Ro has sought. Together, the two begin a new journey and a new rivalry. As the stakes are heightened through kidnappings, deceit and magic, trust becomes a distant memory, and the two begin a feud that could ultimately lead to death, or worse…

Zuzu Zhang, a self-declared cripple, tumbles into the turbulent world of an underground sport involving an exciting new technology.

Kazama’s family died in a mysterious explosion when he was still young and since then, he has not been able to come to terms with their deaths or even with himself. He emotionally distances himself from everyone and his aggressive nature gets him the nick name “Real Life Combat Game Character.”

Years later, Kazama, now in high school, gets close to death after a car accident. As he accepts his fate, Sky Blue enters his consciousness. Somehow related to the multicolored meteors that were seen all around the world on the same day of Kazama’s near fatal accident, Sky Blue is able to control his body. The teenage-looking Sky Blue is able to control Kazama’s body movements and even his speech. He falls for the beautiful but cold Haioka Anna and when she gets kidnapped, Sky Blue takes over Kazama’s body, unleashing enormous amounts of power and strength.

A story about an angel who couldn't fly.

The sky was a bright shade of blue on the first day of university and Ritsuki Ban hopes for a fresh start. As mysterious past regrets continue to linger in his mind, Ritsuki collides into a man who takes on an immediate interest in Ritsuki’s looks— a man whom he later discovers, is one of his new professors! The confident Professor Takagi does nothing to hide his feelings towards Ritsuki; however the reclusive Ritsuki refuses to become teacher’s pet. As Ritsuki and Takagi find themselves sky gazing together one day, they are moved by each others expressions and begin to find out more about each other.

English version via Renta!

From Kokoro no Oasis:

Young Nico and Jean are best friends who have always dreamed of adventure. They finally get their chance when they meet Ibis, a mysterious woman with wings.

A silent story about a young girl and her very own way to cope with her old pet dog's death.

Won the Grand Prix of the Silent Manga Audition 2013. From Thailand.