From Yaoi Otaku Translation:
Rei runs away from his uncle's home and, during the night, he meets a mysterious man that promises him they will meet again the next time there will be a full moon. However, the kid is taken by the police and sent to an orphanage asylum. 10 years later, he meets the mysterious man again...

This book contains 7 unrelated one-shots.
1. Kimi no Iinari
2. Onegai♥Oniichan
3. Kateinai Kinkyori Renai
4. Oyako Futari 3LDK Kurashi
5. Yomigaeru Iro
6. Boku no Koibito wa Futatsu no Atama wo Motsu.
7. 3LDK Kurashi @ Koushin

Yoh Asakura is a shaman--one of the gifted few who, thanks to training or natural talent, can channel spirits that most people can't even see. With the help of his fiancée, Anna, Yoh is in training for the ultimate shaman sports event: the "Shaman Fight in Tokyo," the once-every-500-years tournament to see who can shape humanity's future and become the Shaman King. But unfortunately for Yoh, every shaman in the world is competing for the same prize…

She wakes up finding herself in a town of youkai...
a Japanese style fantasy interwoven with youkai.

Marking the end of one's youth--the high school graduation ceremony. Itsuki, the elder of the twins, spent the best graduation surrounded by friends and his girlfriend. Haruka, the younger of the twins, spent the worst graduation all alone. During the ceremony, the two accidentally fall from the roof--and find themselves back in time at the entrance ceremony. From there, the two's "retry" at youth begins.

From Girls' Generation Scanlations:

He's perverted, malicious, a devil that calls himself 'Ore-sama'.
His true character is -? The Demon King, Char, from a parallel world called Avalon, fell in love with the daughter of a shrine, Hashiba Rin. Both their hearts and bodies have been entrusted to each other, but a first love, Shou-chan, confesses to Rin-?

From Starry Heaven:

Hashiba Rin, the daughter of a Shinto shrine, fell in love with the demon king, Char, who came from a different world called Avalon. They shared their love with their body and mind, but Rin's first love, Shou-chan, confessed to her and---?
Following Char and Rin's meeting, "Honey Colored Devil," the popular serialized in heaven love magazine appears with an extra chapter<3

from Renta!

Sakura is a high school girl who loves to clean. One day, she suddenly crashes into a Demon King from another world. Apparently, this world has fallen prey to a curse that forbids the use of cleaning magic...?! A modern-day high school student in an unknown world... can be useful by "cleaning"!? A super new and exciting otherworldly fantasy----!

Lady Edith has a grandfather who is a mummy maniac and sponsored the ruin excavation at university and a brother who studies Ancient Egypt at the university. But she hates archaeology because it's behind the times and absurd. The one day, she took in a kitten who was nearly dying and saved her from death. Edith's life changed in a major way after that...!? She can see lotus flowers sometimes and ancient Egypt temples. Who is the goddess who calls her 'My priestess' in her dreams?

From Phoenix Serenade Scans:

Most people love red hair. It's so vibrant and striking. But not our protagonist Nora. Many people in her village hate her because she has red hair because of an old legend in the village. Though some people hate her, she still pulls on. But her not-so-ordinary life might become mysterious and dangerous soon...in more ways than one?!

Based on the Shin Megami Tensei If videogame.
The setting is Karukozaka High School, which is mysteriously sucked into a void and emerges in the realm of Makai, a world of demons. Most of its students and school employees are trapped in the other world along with it.

Qin Fei is an ace agent in a special school. She was betrayed by her partner and lover when she was performing a mission in the Bermuda Triangle. She fell into the sea from the boat and into a crack of time and space, meeting a vampire on first day. The battle of a modern female agent against the ancient "old Draculas" in full swing.

From Kirei Cake:

Iride Akatsuki is a popular game footage uploader. He wakes up one day to find that he's been kidnapped and taken to a strange place, along with a number of other uploaders who specialize in different genres of games.

A mysterious alpaca-headed host gathers them after the initial stage, to explain how the game will proceed. Will the group of gamers clear the game and make it back to their real lives?

Have you ever felt as if you are a protagonist of a fictional story? Then Ori's life could be called a cruel drama: the death of her parents, uncaring guardians, bullying in school, nervousness around people... But as a matter of fact she is... an invented character in the truest sense of the word! And the author, who decides her future, is already writing a tragic finale! Only, ignorant Ori does not obey his will...

From Dark Horse:
Misaki Saiki, a young woman with a troubled past, is a professional dominatrix in one of Tokyo's most exclusive S&M clubs. However, her real money is something she likes even less than being a dominatrix. Ever since childhood, Misaki has had the ability to see and communicate with ghosts, and that talent is put to use by the Livelihood Protection Agency, who pairs Misaki with Souichiro Kadotake, a martial artist who happens to be deathly afraid of ghosts. Using her gifts, Misaki is able to help troubled departed spirits resolve what is troubling them and allow them to move on to the afterlife. If all THAT isn't odd enough, Misaki is an albino and a virgin.

In order to find their teacher who had suddenly disappeared, Yotsuki and Kotowari went on a journey, visiting six of her friends as she instructed them to.

Blessed with the gift of magic, with the search as their goal, the girls' incident-filled fantasy story begins.

It's cute, whimsical, and so damn pretty.

A man finds himself in a situation where he unwillingly learns to care for and teach Nivawa, a child of an intelligent aquatic species named Afrika, the ways of human culture.

This is a world where humans and vampire has found something to co-exist: Artificial blood. Still, you can't really helped that people would be scared of vampires bec. of their dangerous nature. Meanwhile, a man (uke) who is tired of loneliness (death of lover) decided to adopt a vampire child. OFC, he had needs so he calls in for sex service every night. What he didn't know is that the kid sees it and because the kid drinks his blood, he is growing up too fast. Will MC (uke) be able to see this vampire as a grown man when he was just an adorable little child yesterday?

From Aerandria Scans:

The beautiful singer Lucille and his orchestra invite you to the city of fear where puppets hunt down humans. The puppets are playing an oratorio of magic and illusions!

--

This manga also features the unrelated short story Camelot Garden in vol. 5.

Quinta is an infamous grand witch who has lived over 300 years and is known for her cruelty and killing other witches. She's shrouded in mystery and secrets, but the truth is, she's actually only 16 years old. In an unexpected turn of events, Quinta becomes a bodyguard for Nestor Gilroy, a renowned professor with 5 PhDs, who is being hunted down for his unpublished research. Together, Nestor, Quinta, and her animal companion Feeyo embark on a journey in order to have Nestor's results published.