At first glance, the Fukuoka city seems like a peaceful one, but under the surface, crime is running rampant. The city's Hakata ward is home to the professionals of the underworld: professional killers, detectives, informants, professional revenge seekers, those skilled in torture, and more. And according to urban legend, even a “killer of professional killers” exists in the city. When stories of the men in the underworld are told, a “professional killer murder” appears.

Regis Ulrich is an incapable soldier; bad at both sword and archery, who passes the time by only reading books. While transferring to a remote region post, he meets a girl who turns out be the red hair and crimson eyed princess Altina, the wielder of the great sword "Grantneil Catoll." Despite being only fourteen years old, she was appointed to become the commander of the army in this remote region simply because she was the illegitimate child of the Emperor. However, she continues to pursue her dream of becoming Empress despite the circumstances that surround her. To achieve this goal, she asks Regis to become her tactician and stand alongside her against the obstacles that are sure to come.

Unskilled in both swords and bows, Regis is a soldier who ranks last in military academy and is obsessed with books. After being banished to the borders, he met a girl who changed his destiny. With her red hair and crimson eyes, Princess Altina possess the sword of kings. Daughter of a royal consort, she was appointed as the commander of the border regiment at the tender age of 14. But she did not lament her circumstances and bears higher aspiration. "I believe in you." Regis accepted the request of the girl to be her strategist and forge through many hardships. The sword princess and the bibliophile youth embark on their fantasy war story.

This story is about a 35 year-old man named Sumikawa Kei. His name is very pure, beautiful, and clean. But according to him, he’s the exact opposite of that. Currently, he works at a movie theatre doing part-time. Before that, he was an actor in gay AV. A regular customer, Okazaki, fell in love with Kei at first sight and still sees the beauty of him through his “dark” characteristics.

In the era following a certain natural disaster, Jyougasaki Hichiki, an escapee from The Rebirth Training Institution for Boys, makes his living as a professional thief.

A chance encounter with the mysterious and unfathomable "Bo-chan" -- the enigmatic being who dwells within the Peppermint Highway Mansion -- compels the curious burglar to infiltrate the run-down (but charming) household as a butler... But what does Bo-chan have in store for the eccentric Jyougasaki?

Fumi Koito used to be raised by an old housekeeper named Hatoko Natsuyaki. He would call her "Peppermint Nanny" because she would eat his leftover peppermint candy drops—because he hates how they taste—then breathe into his nose because he likes the smell.Now Fumi is in his mid-20's and living on his own as a cram school teacher. One day a little girl no more than nine years old shows up at his house. It turns out she is his old nanny who misses cooking and tending to his every need. But because she is pushing eighty and has grown too frail, she drank a mysterious bottle of medicine to regain her youth—and accidentally drank too much. Thus begins their new life together, with the reader frequently left guessing who is taking care of whom.

Five years ago, all but one of the inhabitants of Ootsuka village perished due to the plague... And the sole survivor wished only to follow her two dear friends to the grave. To prevent the deaths of the people who were like family to him, one of the dying boys used his last remaining breath to agree to a proposal put to him by a mysterious fair-haired man. Miraculously restored to health, the trio sought refuge in the adjoining village's church.

The story begins when the Imperial Church starts to express its interest in possessing Murasame, the demon blade rumoured to "contain life." But what connection does this legendary sword have with the three survivors of that devastating epidemic?

Chinmi, an orphan who lost his parents in a tidal wave, is a promising sumo wrestler. Even though he did very well in the junior championships, none of the sumo scouts were interested in signing him because of his body, which is unsuitable for sumo wrestling, and also because of his weird sumo style. But luck comes his way when a small sumo school owner shows an interest in him and decides to take Chinmi into his school. There Chinmi begins his training to become a yokozuna...

"Can you be your natural self, if you know the truth?"
"Can you assimilate into our school?"
"Can you pledge secrecy when you are a human being?"

Fukuta Neko somehow finds herself applying to and enrolling in a secret school created by and specifically for animal/human shapeshifters, though only after difficult tribulations with those who manage the school. Neko befriends a fellow classmate, the cute Suzuhara Miiko, prior to the tough task of enrolling, and afterwards discovers her new found friend's "feline" side, though this changes nothing in regards to the close relationship just started between them. Join Neko on her journey into the mysteries of the prosperous Moritaka school for the sons and daughters of this literal Noah's ark.

Akamine Ryota, a student Angel, is sent to earth to complete his training.
God created angels to guard the peace in human world. Akamine Ryota is a promising senior at the angel training school, but because he lacks full control of his powers he's not allowed to graduate. Fellow students Shirogane, Aotsuka and Kurosawa are in the same predicament. Together, the four are sent to Earth - to purge the human world of evil and to finally complete their angel qualifications!

During the beginning of the Meiji Era, a strategic town in the North, Hakodate, has become the nesting ground of mysterious monsters known as “youjin”. It seems the world’s Great Powers are pulling the strings of the youjin.

Hyou, a 15 year old girl has been fighting the youjin alone up until now under the guise of the master samurai “Miburo”…

One evening, as Hyou was fighting for her life, she was saved by a noble, beautiful fighter, Himegami. Their meeting would affect each of their destiny. And now, the hidden truth behind history is going to start!

A box that grants three wishes might seem like a dream come true.
At least that's what Keita thought, but inside the box he finds a girl. And this girl is no genie--Maki's a devil princess, and she's come to take Keita's soul! But she can only take his soul after he makes his third wish.
So, as a sheltered demon with little knowledge of how to be evil, Maki must rely on her trusty guidebook to teach herself the ways of the nefarious arts and trick Keita into using up his wishes. Until then, Maki's going to live with Keita until he can't stand living anymore.

Kasugai Yoichi just entered high school and started living on his own. But his new next-door neighbor, Nishimori Shizuku, is the ultimate sheltered girl. The smallest ordinary thing is new to Shizuku, who grew up never leaving her house. Naturally, there's no way he could leave such a cute girl alone!

From Echochi Scans:

An innocent boy, who has spent his whole life sheltered from the world in a hospital ward, meets a mysterious young man, claiming to be an acquaintance of his father. The boy’s naïveté may very well save his life, but at what cost?

From The Lemon Teddy Bear:
Tamako, who has lead a sheltered life all her life, wants to attend a university in Tokyo to follow her boyfriend there but is opposed by her grandfather. So she plans a fake engagement with Noriyuki in exchange for her grandfather’s financial support to his family’s shop while both he and she gets to study in Tokyo.

Takato's younger sister Utako has always been a frail child - constantly shut up inside the house and not even allowed to venture outside into the sun. But she's cheerful and affectionate, and Takato can't bring himself to be dissatisfied with the situation at home.

But when he returns to his village after a semester away at his new boarding school, Takato begins to notice changes, not just in Utako but also in his two childhood friends, who seem to know more than they're letting on. And what does all this have to do with an old but infamous folk tale in the village?

From StarryHeaven:

Hasato, finds love at first sight with the model “Peach.” She has entered the high school he attends just before the applications shut. But what is the truth about this “Peach” that she has met there…?!

A transfer student does her best to form a mystery study club at her new school.

From MangaHelpers:
While looking for a ghost that helped him as a child, Satou Akira has run into a fair amount of spirits that he doesn't even see. One day, he goes to a supernatural detective agency for help, and he meets the adorable Yui and her devoted butler Kujou. Using her power, Yui ends up helping him with a number of the dangerous supernatural troubles he gets himself into. Akira starts to feel attached to the detective agency, and wants to learn more about the supernatural.

After visiting her deceased teacher's grave, a guy suddenly falling of the staircase where Asahi Sena ended up saving him. That guy, Itsuki Tobari turned out to be her deceased teacher's younger brother. They started to talk about things from the past, about the dead of Itsuki's sister and an 11-year-old boy who killed her, who was Sena's bestfriend. What happened to the boy who killed her now? Together, they start to find out what did actually happen during that tragic day.