It's the start of their senior year, and Shiika happens to be in the same class as a guy named Megumi. It's a mystery to her why his voice echoes through her mind.
From MangaHelpers: Takahashi Ena is a high-school idol with a secret hobby. She often wears headphones, and people assume she is listening to music. In actuality, there is no music playing; she is eavesdropping! She prefers to listen to two of her male classmates, Nara and Mikage, because they have the most interesting conversations. She has to be careful to not be found out, though, because a creepy hobby like that could ruin her image! [tethysdust]
"Sensei, is this a boy or a girl?" "Do you want to know?" Ichijo Mashiro and fellow classmates are enlisted in a mysterious weekly class that takes the form of a shared nightmare. Like most teenagers, Mashiro has a secret.. he's neither fully male nor female! So far, Mashiro's been able to live life as a boy, but all this changes when he's informed of a new class he 'must' partake in order to graduate from his elite preparatory school. To pass, he must find the key and the one way to find it is to enter into a nightmare world, where his body and soul are put at the mercy of the worst kind of enemies -- other school students, who are battling to find the key. From renowned author Mizushiro Setona, comes a riveting epic mystery that lies between the students, that will have you engrossed from one page to the next. Happiness, sadness, blood and tears will all be shown, but which one leads to an ending? Take the next step into the world of After School Nightmare! From Go! Comi: Like most teenagers, Mashiro Ichijo has a secret. But Mashiro’s secret is that he’s neither fully male nor female! So far, Mashiro’s been able to live his life as a boy, but all this changes when he’s informed of a new class he must take in order to graduate from his elite prep school. To pass, he must find the “Key”…and the only way to find it is to enter into a nightmare world where his body and soul are put at the mercy of the worst kind of enemies: his classmates!
From Yen Press: Excited for the bright futures ahead of them, soon-to-be-high school grads Nanako Konishi and her friends Akane and Shino take a college entrance exam. However, only one of them manages to pass! With their failing grades, Nanako and Akane are forced to enroll in a prep school. The two friends begin a new life in a dorm near the prep school, but they find the road to success to be. . . rather bumpy.
That stupid Doujima, he's always sitting next to me with that blank expression, but he's gotta have all kinds of dirty thoughts, right? One thing leads to another, and...wait, me?! N-no, I wasn't thinking... shut up you dummy!
“Warning: Mature content: This manga contains materials that might not be suitable to children under 17. By proceeding, you are confirming that you are 17 or older.” In this era, demons and monsters roam the streets at night. Humans and familiars work as partners who kill those monsters. Civil servant Fan Xiaotie and the strongest demon girl Linyu of the secret department “Supernatural Affairs Armed Response Team” must face endless crisis. Gui zhan shen sha / Slaying Demons Killing Gods / Стальной Охотник / 鬼斩神杀
The story centers around class 1-7 of Tennogofune Academy, where all the students with "bad karma" or misfortune seem to have been gathered. Hibari, a student in this class, meets the unlucky Hanako and the perennially unhealthy Botan on her first day of school, and together they try to find a way to turn their school life into a happy one.
During her 1st year of high school at Christmas time, Mimi met two handsome boys with really bad personalities. After advancing to 2nd year, all three of them ended up in the same class where they became the class representatives.
Kawasaki and Fujita have been best friends since early childhood. Kawasaki has secretly been carrying a torch for his cheerful buddy, but Fujita only has eyes for the girls around him. The delicate balance of their relatioship gets shaken when Fujita gets himself a girlfriend in high school. What is Kawasaki supposed to do with his feelings now?
Hanayu Ashitaba is the daughter of the celebrated Patisserie Ashitaba, but all she wants to do is be a sushi chef. Hayato Hyuga is the son of the prestigious Sushi Hyuga, and all he wants to do is be a pastry chef! It's love and leftovers at Oikawa High School Cooking Department as these star-crossed gourmands do their best to reach their cuisine dreams!
From Tokyopop: In a school where martial arts are standard curriculum and disputes are settled by officially recognized duels, Ryoko takes on all comers. As the #1 fighter at Daimon High, Ryoko's battles to defend her position never end and "Finals" take on a whole new meaning.
“Hey, Yoshi-kun. I think you’re——” Hearing that voice for the first time stopped me in my tracks. On my way home from school. On the playing field of our junior high, and at the bookshop in front of the station. And then in the empty lot where the white cat slept. Shiina Yuki, the strange girl who somehow knew all about me, always approached me like that. We laughed, cried, got angry, held hands. Again and again, we repeated those disappearing memories and ephemeral promises. That’s why I never knew. I never knew the value of Yuki’s smiles or the meaning of her tears. Nor even the singular sentiment behind her many ‘Nice to meet you’s. This is a captivating, heartrending tale of meetings and partings.