When the national idol Kusakabe Yuka suddenly retired from the entertainment business, it shocked the world and it devastated teenager Hata Kosaku. Kosaku was Yuka's biggest fan and her departure left him depressed. His classmates at the Tamo Agriculture School finally are able to get him to leave his room and attend his class, but to everyone's amazement, Kusakabe Yuka (her stage name) comes into the class under the name Kinoshita Ringo as a transfer student. Kosaku realizes he has the once in a lifetime opportunity to get to personally know his dream girl and, together with his group of friends, try to find out why she is here and become closer than just classmates.

This story about the strange and fantastic stories that unfold around Nero, the black wizard, and Violetta, the clockwork girl.

From ADV Manga:

Private Investigator Loki is certainly an extraordinary fellow with an incredibly demanding profession. While his boyish good looks disguise his true nature, no challenge is too tough for Loki. He digs up evidence surrounding kidnappings, murders, suicides, and the like.

Not only is it Loki's job to solve mysteries, but he must also protect his own interests, namely his family, especially when those who want him rubbed-out enter the picture.

When old adversaries strike too close to home, Loki must prepare, not only to solve the crime, but to survive the vicious attacks! If the action's hot, you can count on Loki being there!

From Yuri Project:

Youko has a complex from being compared to her older sister her entire life, so middle school is off to a bad start when the tennis club is trying to recruit "Aiko-senpai's younger sister" and her best friend Maki. She is shocked to find out that Maki is interested in both the club and its leader Keita, whom Youko immediately disliked, and unfamiliar feelings of jealousy soon threaten to cause a rift between them.

Oda Yuuma is an odd young man. He can float off the ground. He can see into the future. He scares the crap out of some of his classmates and teachers. There is a physicist trying to understand how he does what he does, but Oda-kun has his own agenda, and it involves a possible future he has seen of a girl from his school…

A high school boy named Kōichi Madanbashi who has Hi-ERo particles, the power source to operate the robotic weapon Daimidaler. With the help of Kyōko Sonan from the mysterious Prince Beauty Parlor organization, he stands up against the Penguin Empire that troubles humanity.

Living in the boonies, one must give great consideration to how they will get around when they turn 16. Isaki has just turned 16 and his choice of transportation is his neighbor's Piper Cub. It might be old, but it flies well, and so...

"If you work, you lose", such is what Toru mutters to his younger sister, Akari. In this peaceful world, Toru's daily life is filled with despair.

One day, Toru happens to meet Chaika, a girl who carries a huge coffin upon her back. From then on, Toru's way of life changed...

Story 1: Himikoi (also included in Rabu Kare - Gokujou Men Dokuhon!)
What if the secret she could never tell was revealed, just before her high school graduation? To be able to face her feelings for Yoshii, whom she has a crush on, the two of them begin a secret game in their secret place. With the last day of school impending, what will be the outcome to her love...?

Story 2: During a Stormy Night
After losing her cellphone, Nao is only hoping that someone nice enough would pick it up, but much to her surprise, the person who finds it is the guy from the video store near her house. Too shy to go and reveal herself, she starts communicating with him solely over the phone.

Story 3: The Glass-bead Bridge
According to the old legend, if you dig out a glass-bead from the famous glass-bead bridge, your love wish will come true. That's exactly what Niina is trying to do during the cold winter time. Every night going to the glass-bead bridge and slowly digging, she eventually gets spotted by her old middle school classmate. Not promising to even meet up once, they still keep seeing each other every night by the glass-bead bridge. Will Niina's wish come true?

Story 4: The Red Turtle's Dream
"I like Sensei." Riku is loving him one-sidedly, but Sensei, who is very self-centered, doesn't even try to accept others. It is only during the short time while she's looking after his pet turtle, Kamekichi, that she feels closer to him, but Sensei's emptiness can't be filled with anything. She wishes for him to find happiness, even though she knows she can never be the one to fulfil it.

Story 5: A Perfect Day for a Picnic
A broken family can only find comfort in a family that went through the same problems. Years pass and people grow old. Some grow into wiser adults, some into young adults, and some into teenagers; teenagers that become interested in love and feelings. Their nervousness and awkwardness can lead to an uncomfortable situation, one that may make them regret what they did. Are love and feelings stronger than family bonds?

Story 6: The Hideout of Those Two
Thanks to her constant bluffing, Chi always spends her days on her own. Her only solace is the secret hideout from her childhood where a kind and protective Nii-chan used to live leaving her with a key and a promise. Will he really come back and when he does, what will change for Chi?

From Chibi Manga:

That was the first time I fell in love. The first time I met "Leopard-kun", time stopped and I could not breathe. My heartbeat became louder and I could not take my eyes off of him. Although Leopard-kun told me "he wants to be with me", he is a guy who has kissed many girls. This love has many difficulties... it's tender yet painful, but even so I can't stop my feelings for him. I'm sorry...I fell in love with a "beast". This is my first love.

"Minimum" or "minor miracle"? special hereditary powers discovered only in an extremely limited number of humans. Those who possess such powers are known as "Minimum Holders."

Partners Nice (Ryota Ohsaka) and Murasaki (Wataru Hatano) form a detective agency called "Hamatora" in Yokohama in 2014 ? but their "office" is a table at Cafe Nowhere where they and their friends wait for clients. An old acquaintance of theirs, a cop named Art (Hiroshi Kamiya), hires them for a serial murder case he is investigating, and they discover that the murder victims are all "Minimum Holders." As Minimum Holders themselves, Nice and Murasaki are drawn into this case, whether they like it or not.

From MangaHelpers:
The end of the civil war signaled the start of the industrial revolution in the United States and immigrants from all over the world traveled to find their American dream. But what awaited the majority of them was poverty, discrimination, and hopelessness. Manhattan, New York was full of immigrants flooding through the ports and the 6th district, Five Points, was considered at the time, the world’s worst slum. The mobsters corrupted the entire area, including the police by paying them off; Five Points was the mob's territory and they were the law.
But even Five Points, where there seemed to be nothing but robbery, prostitution, and murder, showed some signs of hope. Luke Burns was an honest and righteous teenager who realized that the mob was the cause of their harsh lifestyle and that joining the mobsters would not bring him the American dream. But his older brother, Brad Burns, had become an assassin for the biggest mob group of Five Points, the Grave Diggers, a secret he kept from Luke for his own protection. Brad was known as the Grim Reaper and his reputation preceded him as a ruthless and skilled killer.

From Fate:
Set in a fictional European country in 1924, a Japanese exchange student meets a mysterious, brilliant girl who only leaves the library to sleep. Her brother, a detective, relies on her mind to solve difficult mysteries, several of which draw her away from the library.

From Yen Press:

High King Madeth and his dear friend, the knight Lalvan…

By all appearances, the ties that bind the two men are made of the sternest stuff, but in truth their friendship has always struck a most delicate balance. With the arrival of Lady Prima and then her newborn son, Perseus, the precarious harmony between Madeth and Lalvan crumbles. And years later, when the young Perseus, harboring questions about his birth, seeks out Lalvan, will the repercussions be much greater than a friendship lost?

A lone angel, its eyes replete with sadness, watches the tragedy unfold…

Akabane Yuuhi, a 15-year-old girl who aspires to become an actress. Well, her dream might soon come true. She has been accepted into 'Diamond Actors Academy', a very prestigious school which trains young boys and girls to become actors. Many famous actors and actresses graduated from this school. So, of course, Yuuhi is excited. But, things start to get a bit weird. Just what is up with their teacher, Otome Kasumi? The acting is getting a tad too realistic to be considered acting. Things are getting really creepy. Is the school really what it seems? Or is there more to this school than meets the eye?

Viewed by some as a monstrous scourge and others as dark gods, the dragons are almost as ancient and powerful as Odin and the other Aesir, and for countless years have lived wild and free, unbowed and soaring across open skies. But things have changed. The dragons have been tricked and enslaved by the malevolent Loki and the traitorous Nidhogg, the Black Dragon. Now, their only hope for freedom rests with those few dragons who were able to avoid enslavement, one of whom was Iris. With ancient fire burning in her veins and hungry for vengeance, Iris has allied herself with the Einherjar so that she might gain the chance to burn Loki to ashes and free her captive brothers and sisters. Crystal Arena is a manga series based on the strategy game Crystal Arena, a story of the legendary Einherjar fighting alongside with the mighty gods in the ultimate battle of Ragnarok.

""Have we met?""Answer: a right hook Because Bryony Morgan pulls no punches. Even when she's very pregnant and facing down the father of her unborn child. She fell for wealthy hotelier Rafael de Luca when he courted her for her beachfront real estate. Then he disappeared. Now, she's in New York for answers--and she won't accept a brush-off.

Rin had quit calligraphy after her mother's death. Then upon seeing the calligraphy of a high school calligraphy masters, Uchida Dougen, she started learning again. Rin entered the same school as Dougen and the current calligraphy club or more like Dougen fan club. When the student council president announced that the club would be disbanded, Rin had to take action to keep the club going. Dougen, who had come to support the president, ended up joining the club because Rin's word sparked his interest. Unbeknownst to her, Dougen is somewhat of a playboy. What will become of Rin and her beloved Calligraphy club?

Hoshino is a timid grade school teacher. Sudou was one year his senior in high school. They meet again for the first time in over a decade and discover that Sudou's son is Hoshino's student. The two of them try to figure out how they feel about each other, and try to remember what it was that had brought them together and ultimately drove them apart in high school. They're both different, but that may not matter as much as how they still feel about each other.

He died, only for a minute. Minakawa Ryo was an ordinary high-school student until the day a girl jumped off a building, killing him with her. He miraculously comes back to life but with a new ability to see and hear what ordinary people cannot. Then one day a mysterious girl, Hokuto Shou, appears and tells him that his half has become a resident of the world of the dead. His previous ordinary life has dissipated, and a new life between the "living" and the "dead" begins.

Included is a special arc called A King and a Baron+.