From Night Constellations:

Morishita Haruna is a high schooler who has a crush on a guy, called "Haru" (by his friends), whom she always see at the train she rides on. One day, waking up, Haruna was shocked seeing "Haru" sleeping in her bed! Neither one of them knows why is "Haru" there. After introducing to each other, Haruna knew that "Haru" is actually his surname and his full name is Harukawa Kanata. Kanata was just about to leave but an invisible wall on the door prevents him from getting out of Haruna's room. Him being unable to leave, Haruna has no choice but to go to school while Kanata stayed in her room. At the train station, an old man tried to molest Haruna but Kanata saved her?! But this Kanata doesn't know Haruna!! Rushing back home, she saw the Kanata who slept in her room still there! What happened to Kanata's body?

Compilation of short stories:

1) Tsumi Koi / Sinful Love
“If you want me to stay quiet, then have an affair with me too”
Yashiro witnessed her classmate Maki, who is extremely popular with the girls, with a girl who wasn’t his girlfriend. Tired of her uninspiring days Yashino suggested that she become Maki’s “lover”, but because of these circumstances she finds herself being charmed by him and she can’t stop herself from falling in love with him…!?

2) Until I Fall in Love
About twin sisters, Tae is the older twin and Rie is the younger. One day, Rie begs Tae to switch places with her. Rie has a crush on a boy who sits next to Tae. Finally Tae agrees. In Rie's class, Tae is surprised to discover that Rie sits next to a cute guy, the one on the soccer team that she saw after school a few days ago. Then, Tae has a good time sitting with the boy. He's funny and nice.
When he invites Tae to watch him play soccer, Tae agrees, but then she realizes that he invites her as Rie..

3) Let's Meet in Dream!
Fuzuki has been having some strange dreams recently. In them, she is at school, and she is talking to a cute young teacher. Fuzuki is in love with this teacher, and he knows it. They always hang out on the roof of the school, where he smokes a cigarette. Every night she has dreams about him, and they hold very real conversations. But the thing is, Fuzuki doesn’t know who this guy is!
Why is Fuzuki dreaming about this guy? Does he dream about her? Will they ever be able to meet in person?

4) Tears of Goldfish
It was a summer festival 5 years ago, and a young girl was kissed by a cute boy while fireworks exploded all around them. But one of their classmates saw them kissing and teased them. They were elementary school kids, so their accusations are rude and obnoxious. The girl, Iyo, was embarrassed and denied it before the boy, Tsujiai could say anything. Ever since that day, she and Tsujiai, haven’t spoken.
Now they are once again placed in the same class after 5 years. Iyo feels awful and awkward. But it’s obvious he still hates her…

5) Love Spell
Momoka and a friend are standing at their classroom window, checking out some cute senpai boys. Momoka prefers boys with shorter hair. Her friend says that Shibahara isn't Momoka's type. Shibahara is a boy in their class, and he has long hair that obscures his face.
The next day, Momoka finds out that Shibahara arrives to class with a new, short, haircut! And wow, he is actually very cute! Momoka can’t believe this. Could he had overheard her conversation yesterday? Or is this a coincidence? Could he really have cut his hair for Momoka? Momoka suddenly finds herself very aware of Shibahara. Is she falling for him?

N/A

From SP:
Suou, a warrior, is indebted to a demon called Sakaki, who saved his life.

A love comedy about a female university student who is secretly working as an underground idol and what happens when a super sadistic guy finds out that secret.

From Shoujo Crusade:
A hot blooded part time hunter with a sense of justice, Yan Zi Ying, working everyday for the sake of maintaining the peace between devils and the human race. One day the hunter headquarters tells her grandfather that the seal is going to be broken very soon. In order to reseal the seal, Zi Ying and a fat parrot Xiu Shou charges straight to the devil’s head, vampire, Yu Wen Hao’s home in order to take away the sacred book by force, not expecting Yu Wen Hao to easily give the sacred book to her.

From Chibi Manga:

In front of Marika that lost ability to smile suddenly appeared mysterious boy calling himself "angel"...!?

From Shoujo Crusade:

Aoi and Rin are twins who are very close to each other. Aoi is a tomboy who is also a big kendo nut while Rin is a budding designer. Aoi, after losing a fight against a former acquaintance, Izumi, decides to hunt him down for a rematch but somehow Rin doesn't like the idea? What does he really see her as?

Irene is very happy when she finds out that her mother is getting remarried and will have an older sister to play with. Laura, on the other hand, is not so happy to see her father getting remarried after so little time since her mother’s death. While the girls start to settle their differences and become more friendly towards each other a dark secret starts to reveal itself.

In this retelling of it's Prequel, Migawari Hakushaku no Bouken, Frederick talks about his observations of Mireille.

[Transcendence Scanlations]

Onikubi High School is governed by 100 strict rules. In order to set the students free from the rules perpetually enforced by disciplinary committee president Subaru Ryuuzaki, Oni High Madonna Reina Katou speaks up! Follow the inevitably comedic school gag oneshot!

From MangaHelpers:

Takahashi Kiji is an attractive, popular, student council president, but he and his two closest friends are bored. Kiji comes up with a game, "The Prince Game." The goal is to bring the worst girl ever to his birthday party in a month. Kiji begins trying to romance the friendless, round-shouldered, weepy Asahi Mabi, who has just been through a harsh breakup. To his surprise, Mabi does not immediately swoon into his arms. Instead, she seems to be a human being, with her own thoughts and goals. She is uncomfortably good at seeing through some of his act. Seducing Mabi requires getting to know her, which is dangerous when his intention is for her to end up in tears...

Nagahara Kisara can read thoughts. Miura-kun is a popular guy, apparently normal, but with unknown feelings for all... Do Kisara unveil?

Princess of romance, Hwi-Kyung. The handsome, wolf-like, Three Musketeer guys who run to Hwi-Kyung wherever she is.
They make a secret promise without Hwi-Kyung knowing. If one of them starts to love Hwi-Kyung, their friendship will shatter.
A no-love oath.
The prince of confidence, Yoon Suh-Rin's, charm!
Te-Ri, who became a two-timer because he loved Hwi-Kyung!
And the one who hid his love for Hwi-Kyung's happiness, the charismatic Jo Hwan-Sung's sad love story!

Hitomi moved to the countryside, and is bored, in comparison to her former busy life in Tokyo. However, that changes when she meets a certain boy...

Based on a popular otome game, Hakuouki follows Chizuru and the Shinsengumi in an alternate reality. Chizuru travels to Kyoto in search of her missing father but after being involved in an incident, ended up being taken in by the Shinsengumi where she meets the members including the famous Hijikata Toshizo and Okita Soshi. Chizuru’s father was conducting government research for strengthening the Shinsengumi and developed the ochimizu. The ochimizu is a formula that gives demon like strength and regeneration effects but once taken, the user experiences extreme pain and eventually turns into a blood hungry monster. In an attempt to defend Chizuru, Hijikata takes the ochimizu and although the situation was saved, he is now affected with the illness. Okita is also forced to take the formula when his tuberculosis prevents him from defending Chizuru and himself. Feeling responsible for their actions, Chizuru must fight her feeling of helplessness and find the courage to support the Shinsengumi.

Yuuki is a girl who lies about her gender to enroll in the theatre department of Getsuryou academy, an all boys' school where all the students are required to stay in the dorm. While hiding the fact that she's a girl, every day, she tries hard to study acting, the subject that she loves so much. One day, an upperclassman, Riku, found out her secret, causing Yuuki to be very worried, but she gradually got attracted to him. At the same time, she came to know the real reason why she was brought up as a boy...

From Midnight Scans:

In exchange for Naoe-kun to stop smoking, Nina has to kiss him instead!?

Ostracism and mistreatment at school. How can one stand alone against the all-too-powerful group? Sawako finds a way and she starts drawing manga.

A story of a young girl, Yin, and her passion for the violin.

Warning: This is not a romance!