From Jcafe24: Corpse Party: Blood Covered is about a group of high school friends in Kisaragi Academy. Kisaragi Academy was built on the grounds of Tenjin Elementary School, which was demolished after a string of disappearances and gruesome murders. After a mysterious earthquake, the students find themselves trapped in an alternate reality Tenjin Elementary School, where the murders of others trapped before them have continued unabated...

Momiji knits a sweater for her friend, Yunobe, who's going to be in the school's Christmas fashion show.

From MangaHelpers:
This is a story of a group of college-age people who struggle with gender and sexual identity.
Yuki (nicknamed Yoshiki) is a girl, but she is terrible at 'being feminine.' She mostly dresses like a boy and is often mistaken as one. However, she has to wear a skirt and imagine being dominated by a guy in order to masturbate. Nagao Mikako seems young and innocent, and she uses that apparent innocence to sell her body as a fake 15-year-old. She knows her youthfulness can't last forever, but she enjoys tricking the men. Her friends have no idea of her sexual habits and believe her to be sweet and sheltered. Aiba Kaito is a pretty good-looking guy, but he wants to be Nagao Mikako. He often dresses as a girl, picking out clothes that mimic Mikako's style. Though he's into cross-dressing, he is still attracted to women. Will these young adults and their friends be able to handle their 'guilty secrets' and muddle their way through this confusing period of their lives?

When humanity was threatened 5 years ago, the boy who saved the world was driven to despair and became regarded as the enemy of all of mankind. And now a new crisis approaches humanity. The curtain rises on a gallant drama about a hero falsely charged.

Lin is just an ordinary high school student. But on the day she transfers to a new school, she gets a video game, which sends her to the world of King Arthur. There, she meets a mysterious wizard, who tells her that her mission is to find and gather the Knights of the Round Table and find the Holy Grail.

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From Asclepias Scans:

Park Min Gyeom is a human with a disease that makes him produce excess blood. Kim Chun Sam is a half-vampire who needs blood to live. So begins an unusual symbiotic relationship between "predator" and "prey."

Note: This series contains additional (optional) 18+ scenes.

After jumping into the sea during a cruise, Fukamachi Wataru, the famous musician, lands on an Hoshi Island, a place inhabited by folklore people. There he meets Himukai Antsu, a girl gifted in the arts of singing and dancing. With her, he is able to find his calling again, and once more create music. What he wants is to take her to Tokyo so that she can share her gift with the world.

From Hoshikuzuu Scans:

The story of a young owner of a long-standing small eatery and a puppy-like laborer.

Kota attaches himself like a puppy to Makoto, who has been like a fatherly figure to him. Even after they have grown up, he still smiles and proclaims proudly that “Mako-san’s food tastes just like a mother’s does!”

The two get along as well as a family, but one day, a customer arrives who becomes a thorn in Kota’s side. The two appear friendly and Makoto shows expressions that Kota has never seen him make. And he acts differently than normal… Kota is then plagued with a dislike and worry that he can’t shake off.

Moe confesses to Yuuka who rejects her harshly in a haughty manner different from her usual "good girl" personality... but Moe seemed to enjoy it?

The series is composed of four protagonists.

Nori: An energetic, upbeat girl who was heartbroken sometime ago due to her childhood friend. Now she is headed to meet Haruna, the lonely kid she always played with back then, but to her big surprised grew up into a hunk.

Kyou: The school's prince. From a distinguished family: he is handsome, smart, athletic and rich. He has never struggled for anything in his life, be it money or women. Haruna's sudden return throws him off momentum.

Saeka: She, Nori and Kyou are childhood friends. She is mature, composed and understands the two quite well. Although beautiful, she has been in love with her teacher since middle school and therefore never gone out with anyone. Will her feelings be answered or will she find an unexpected love around the corner!?

Haruna: The boy who comes back after having been away for many years. His reason for returning is unknown. The guy who’s clouded with mystery shows interest in Nori. Does he really like her or is there something else behind it...

Summary: Nori Sakurada is riding her bike one day, when she meets up with a boy she used to know when she was little. He has grown, but doesn't look very happy...

Also contains a side story called Himitsu no
H-kun in vol.1:
The well-known and popular Hakozaki-kun is the dream of every girl in Miwako’s school. However, he's hiding a secret! One day while walking down the street, Miwako notices him secretly taking photos of elementary schoolers!! Could it be that the famous Hakozaki-kun is actually… a… a pervert?!

The continent of Yggdra is a place where humans, ogres, giants, forest sprites, and many more mythical creatures live. Led by the Holy King, the continent was at peace until one day, a mysterious group called the Black Army appeared and started conquering the land. In response, the Holy King and its troops fought against it, but Holy Capital fell and the Holy King was killed by the mysterious Black King. As the continent was in the glimpse of destruction, hope glimmered as one man, Yuri, the Hero, decided to fight back and formed the Volunteer Army to oppose the Black King and bring peace back to Yggdra.

As working woman and plant fanatic Sayaka Kōno was heading home from a drinking party, she found a handsome man sitting in front of her apartment who says, "Please bring me home with you," like a dog. With no place for the unnamed man to go, the two begin living together, and their "delicious" love story begins.

Yuu Tomonoga is a genius who was accepted to an American university at the young age of 13 and later accepted into the university's graduate program. Unfortunately, he loses funding for his research, but decides to drop out and continue the research on his own. He travels back to Japan in hopes of getting funding, but he quickly runs out of money for daily living. Luckily, he gets a call from an old friend and accepts his offer to teach at an all-girls school.

"The youth ensemble of love, food and war..."

Ishikawa Takuya, a high-school student who doesn't stand out in any particular way, is surprised when his principal asks him to take care of some transfer students. He is even more surprised to find that there are actually 30 charming female transfer students in his care, who have come from a boarding school that was destroyed in a fire! At first it seems like a dream come true, but then he notices their knives... and guns... What kind of school did these girls come from?

His first love was his father's lover. To deal with this unrequited passion he made a habit of serial-dating older women. But then there's his carefree-but-straightforward friend Shinri, who remains sincere to an unrequited love. For the first time in a long while, a cynical young man's heart begins to flutter anew...

Note: Chapters 1-3 include the title story. Chapter 4 is a side story to Kemono ni Namida.

Suga and Hara have been close friends since junior high, and became housemates in university. Hara, a cool guy and popular with girls, is completely unaware of his own popularity, and Suga is proud to have him as his closest friend. Although Hara makes him feel uneasy by how much he looks after him, if Suga's honest he actually slightly enjoys it...... Suga ends up developing feelings towards Hara that go beyond friendship, but he's happy with the way things are between them. It's just nice for him to be by Hara's side. One night, Hara tells him that he'll be coming home late. Suga, who's finally able to spend some time at home alone, finds Hara's jacket lying on the sofa. As he takes it in his hand, Suga's scent pervades the air, and Hara gets unwittingly turned on...... It's a slightly naughty love story about two guys joined at the hip, and it'll get your heart racing!

from Renta!

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!

In the corner of a certain town, there is a teashop where the master, Tsukasa, obtains and cares for plants from the depths of hell.