Hieda-sensei is a professor of archeology, with a fervent belief in the existence and power of supernatural creatures such as gods and demons. Since he can't prove anything, his belief has earned him the mocking nickname Youkai Hunter from his colleagues.

One day, two men from Ootori-chou come to visit him. They're planning to promote tourism by reviving their town's old, traditional Demon Festival, which was discontinued a century ago. They're basing the festival on Hieda's research, although they're changing a few details to make it flashier for modern sightseers.

Although Hieda is troubled by the history of human death associated with the festival, he agrees to attend as an advisor. When the Demon Festival turns out to be much more historically accurate than anyone ever dreamed, it will take all of Hieda's knowledge and courage to help set things right!

The 1974 classic Youkai Hunter is now updated with a new artist's fresh take on the story!

Girls cry! Laugh! And get harassed! Young female college student, Hino Motogane, starts a part-time job at a small late night Izakaya. However the shop’s clientele – were youkai. These youkai do all kinds of things to their favorite Hino, sometimes they strip her, sometimes they cover her in spit, no matter what they work her to death! After all, she wants her paycheck…. Come on in under the curtain into an Izakaya comedy where girls are full of laughter, tears, sweat, spit, and who knows what fluids that are flying about.

A boy wakes up in a strange room and finds a girl passed out with him. They find out they both have weird collars on. The boy has a phone which seems to be connected to the people behind this. They want them to do what?

Youkai are mysterious, trouble-making spirits and demons that have tormented Japan for centuries. Kotoko’s grandfather exorcised them for a living, but Kotoko never thought that her family lineage was an asset. Then she meets Kuro, a youkai doctor. Youkai have doctors? Now Kotoko is learning firsthand that healing youkai is a lot more challenging than getting rid of them!

Nishizuru Yakki is a permanent part-timer, regular customer in a maid-cafe, and 20-year-old virgin. What makes him special is his ability to see ghosts. But ghosts are not monsters, they are mostly harmless. At least our hero can live by simply ignoring them. Yakki never believed in monsters until the day when he meets the girl named Rokka. This cheerful girl appears to have a secret...

When Keita frees Whisper, a ghost-like youkai, from 190 years of imprisonment, Whisper pledges to protect Keita from supernatural dangers. Whisper also gives Keita a watch that allows Keita to see other youkai. Together with the twin-tailed cat spirit Jibanyan, they encounter many youkai-related problems and solve them.

While walking around town one day, 5th grader Amano Keita notices a bizarre capsule toy machine in the woods and decides to buy a toy. But when he opens the capsule he receives, a ghostly creature named Whisper materializes. Impressed that Keita neither ran away nor bombarded him with questions, he decides to give Keita the Youkai Watch. The watch is a device that allows the wearer to see youkai, which are fantastical creatures, each type possessing different kinds of magical abilities, and which are normally invisible to humans. The Youkai Watch also allows the wearer to summon any youkai he has befriended, enabling the wearer to make use of the youkai's powers. Using it, Keita and Whisper encounter many mischievous youkai around town, resolving the trouble they're causing and befriending many at the same time.

Based on the hit video game of the same name, and winner of the 2014 Kodansha Children's Manga Award.

A young girl is browsing an antique shop when she comes across some youkai. At first scared of them, she eventually comes to befriend them and they give her a device called a "Youkai Watch," which grants her the power to see and befriend other youkai.

From Yen Press:

The elite and beautiful Ririchiyo Shirakiin has a bad habit—she can’t help but lash out at people with her vicious tongue, all while hiding behind a mask of haughty cool. This attitude has a lot to do with people minding her business because of the Shirakiin family name, but it troubles Ririchiyo to no end. In search of independence and solitude, she moves to the Maison de Ayakashi, an apartment building full of wealthy tenants and with its own Secret Service. Ririchiyo is eager to be alone, but upon her arrival, she is greeted by Soushi, an SS agent arranged for her by her parents. Ririchiyo tries to turn Soushi away, but Soushi’s dogged devotion to his new mistress will not be deterred. The threat against the residents of the Maison de Ayakashi are not to be taken lightly, after all. And despite his puppy-like demeanor, Soushi is not to be trifled with either…

Kamiyama village is considered a "ghost town", with an ever declining population. However, the mythical creatures known as "genjuu" who live there aren't counted towards the population total. The human girl Akane gets forced into the role of the Kamiyama village Public Outreach Committee president. Along with the help of a minotaur, a cyclops, a phoenix, and more, she's tasked with revitalizing the village. Follow the struggles of the beautiful genjuu girls straight from the mind of the up-and-coming mangaka, Koto!

Kodo Ikusei Senior High School, a leading prestigious school with state-of-the-art facilities where nearly 100% of students go on to university or find employment. The students there have the freedom to wear any hairstyle and bring any personal effects they desire. Kodo Ikusei is a paradise-like school, but the truth is that only the most superior of students receive favorable treatment.
The protagonist Kiyotaka Ayanokoji is a student of D-class, which is where the school dumps its "inferior" students in order to ridicule them. For a certain reason, Kiyotaka was careless on his entrance examination, and was put in D-class. After meeting Suzune Horikita and Kikyo Kushida, two other students in his class, Kiyotaka's situation begins to change.

A what-if story taking place in parallel world which focuses on the relationship between Kiyotaka Ayanokoji and Suzune Horikita.

From Seraphic Deviltry:
A collection of oneshots previously published in the Danshi Series anthologies, following themes such as stalking, unknown/masked lovers and humiliation.

From Bunny's Scanlations and Must Be Endless:

Top student Mizusawa, third year in high school, was kissed by his drunk homeroom teacher, Takatsu (37 years old). After being told by a dazed Takatsu, that he'll stop the unrequited love he's been holding for him ever since his school entrance, Mizusawa has for the first time taken an interest in him. A few days later, ever since his secret was known, Takatsu has been scared of Mizusawa getting close to him and each time Mizusawa would shudder with excitement. However, one day after learning that Takatsu has gone to a marriage interview, suddenly Mizusawa realized that he wants the older man. Also features the adult love between a mail carrier doggy type and an ill-tempered novelist.

Volume 1 : Young Bad Education
Volume 2 : Young Good Boyfriend

The prequel to Black Jack, Osamu Tezuka's classic series about a brilliant maverick doctor who practices without a license. This story follows Black Jack when he was still a young, unorthodox medical student in 1968.

http://toptoon.com/ranking/ep_list/YoungGun 

From: Easy Going Scans
High-school student Jinpachi Kogure is a member of the manga club and is no good with women. Yumika Testuyoshi is a troubled female high-school student who's always skipping school and searching for a girl she doesn't hate. However, these two are in reality young masters of the art of killing people:"Young Guns.