From MangaHelpers:

There are huge monsters wreaking havoc in Mikagura Kiriwo's city. Building on his father's work, Kiriwo has created a serum that turns him into a giant monster for a short time. He uses this serum to help protect the town from a monster one day--only to find that everyone thinks he's an enemy, too! Everyone at school and in the media hates the "black monster" that he became, due to the massive destruction he did to the town around him. A girl from his class even has to quit school, due to problems caused by the "black monster." Will Kiriwo be able to show that his monster form is really intended to be a savior? [tethysdust]

The "mysterious school comedy" centers on the unusual members of a high-school literary club. Touko Amano, a high-school senior who calls herself the "literary girl" as the club president, is actually a supernatural creature (youkai) that devours stories — she tears pages from books to munch on them. Her club subordinate is Konoha Inoue, a second-year high-school boy who writes stories every day for Amano to eat. He once wrote an award-winning novel, but he wrote it under the penname Miu Inoue so readers thought the author was a mysterious 14-year-old bishoujo novelist. The stress from the novel's fame and its movie and television drama plans turned Inoue into an introverted recluse.

Adamsville” is an all ages graphic novel series about two middle school friends who must work together to solve a series of supernatural mysteries in their hometown. What they discover is a vast conspiracy that threatens to destroy everything they know about their lives, town and their future. Now they’re the only one’s who can stop the coming catastrophe.

When a zombie apocalypse hits during the practice of a high school basketball team, it's a whole new life for the coach, Jeff. The world's turned upside down and the girls seem to be handling the changes way better than Jeff, who has troubles adjusting. A close-knit group of friends, the girls are eager to tackle this new world with its challenges!

In this world, every child is born under a god. Some gods are weaker than others. Some gods are stronger than others.

Children born under weaker gods become defunct in society, and cannot attend high school. Instead, they must get jobs after middle school. High school in this world is a place that trains students to use their stronger gods. They have one thing in common: They can grant wishes if the correct price is paid.

Leerang turns back time a day, and pays dearly for it. To reverse his wish, he must attend high school and try to use the powers of his cat god once again.

After being declared clinically dead, traveling salesman Ed Zamsa tries to go on with his life regardless of his strange condition. As if things weren't hard enough without being dead.

Fushimi is a high-school student who also aspires to be a mangaka. Rin is a model who appears to have some type of psychic powers. What will happen when these two cross paths?

Saitou Shinji is an Ordinary High-School Student living a peaceful life on a peaceful island… way too peaceful for his tastes. The only two things he enjoys on the island are the pranks he plays and the time spent with his Childhood Friend Kana, a cheerful girl who loves taking photos and understands Shinji better than anyone.

However, when he runs away after an incident where he got angry and punched several classmates in the face, he receives a mysterious e-mail on his cellphone: "If you answer this e-mail, you too can become an invisible man!" He answers it while laughing it off… but the day after, everyone has inexplicably forgotten about the incident, and a mysterious white-haired girl appears before Shinji, calling herself an "invisible woman." He soon realizes that answering this e-mail may take away from him the only thing he holds dear…

A new transfer student has come into town, a girl with a mysterious air and black clothing who is called Inugami Sakuya. What few know is that by moonlight, she hunts and kills those possessed by "Inugami." A man can become possessed by being bitten, leading to a nighttime transformation into a beast driven to eat women. Sakuya gets no thanks for brutally ending the lives of these unfortunate men with her sword, and she is often too late to save the women they threaten. Sakuya also must deal with her own inner demons, which are all too real.