From Bakeneko Scanlations:

Banri is a college student who goes with the flow. One day, he meets a well educated business man, Masaomi, with whom he ends up in bed with. This relationship was supposed to be a one night stand, but Banri confesses that he wants to meet Masaomi again after discovering his cute and honest side.
However, Masaomi tells him that he has a fiancée and will never be meeting Banri again, he leaves by ending the night with those words. Few days later, Banri discovers that Masaomi is actually the heir of a big and well known plutocrat!? With the main story, follows the love story between a station attendant and a divorced business man and the bargaining love between a manager and his secretary.

From MangaHelpers:
Minami Eita lives with his older, book-loving brother, whose long-time girlfriend Arumi is often around the house. Minami tries to get along with Arumi, but the truth is that he likes her much more than is appropriate. Even though Minami doesn't read much, he helps in the library with his bookworm classmate Shinonome Yuuko, who loves short stories. She thinks that while most people want to think of themselves as the hero of an epic saga, short stories are much more like their actual lives. Minami's ordinary life becomes more confusing when he begins to suspect that he has feelings for Yuuko. One day, he finds out her secret--she is actually a published author of short stories! Her publisher wants her to write a novel, and she has enlisted Minami's help in an unexpected way. Minami's teenage life is not going to get simpler anytime soon.

5 - Loitering Away

From Liquid Passion:

Konoe, a high school student, is confused about his sexuality. He meets Hikaru in the sleazy gay district, and sleeps with him. They begin to play at being lovers, but Konoe's heart belongs to Atori, his friend and classmate. Can Konoe come to terms with his sexuality and reveal his feelings to Atori, and where do Hikaru's true feelings lie?

Note: Tokuma Shoten Edition of Rules comes with a new cover, and color insert. It also has Chapter 6 and an new extra called "Naturalist". It *DOES NOT* Have chapter 00 which is present in the previous edition and is a prequel to the story, it retells chapter 1 from Hikaru's POV.

Part of Rules / Hydra Series

A powerful sorceress, Felicia Rand Philistin, once tried to conquer the nation of Shurian. In her wake of terror and destruction, a single man stood up and rebelled against her oppression and domination. The people called him Maian the Brave (Yongja Maian) and it was he that sealed the evil sorceress.
A thousand years later, Fenix Maian in a strange twist of fate releases the sealed sorceress that his ancestors have tried so hard to keep imprisoned. Now he has to keep the sorceress from taking over the world once again...

It has always been a one-sided love for Kima. Kima had slept with many guys since high school. However, Furudate was the only student he'd ever loved. Neither has he done it with Furudate before, nor confessed his love to him. One day his mother's lover, Ishiki, appeared before Kima... and so, this unbelievable yet physically and mentally heartbroken love story is presented!

As the engagement to the company president's daughter had been settled, days passed in smooth sailing for Tachibana when in front of him, the university senpai who he had lost contact with long ago, Ryuusuke, appeared. To add to that, Ryuusuke said to the bewildered Tachibana that he wants to play "couple" for a just a month... A bittersweet love story filled to the brim with heartrending emotion!

Natsume Kanade wakes up with a terrible headache from the day before unable to remember who he is. Being confronted by a strange man with dark-rimmed glasses who calls himself "God" and being told that he is a high school teacher doesn't help. Stranger yet, everyone seems to know what happened yesterday - everyone except him.

Tears and Rainbow:
Very determined Kaji decides to become an apprentice shoemaker with rumored is the best in the field. Mao accepts it after verifying the sincerity in Kaji's words regarding his intention of wanting to learn. Mao shows your "castle" in making the shoe making, there Kaji gets his first kiss under the context of "If you stay here you have to do the work of an adult."

BangAQUA:
Hachii, who works at an erotic game production company, has a secret overtime work late at night that he can’t tell anyone. That is, to be approached by his senpai, Komiya to do H activities when the two of them are alone ♡. When it’s at night, an audacious Komiya and a bewildered Hachii, but…!

From Liquid Passion:

1-4) When Ryuu transfers to Hitomi's school, he leaves an immediate impression on him. Curious about rumours of a full-scale tattoo on Ryuu's back, Hitomi starts getting closer to him. Before long, the friendship and fascination Hitomi feels for Ryuu start developing into more, but before he has a chance to come to terms with his feelings, Hikaru appears on the scene.... and he has his eyes set on Hitomi.

5-6) Now that Hikaru has become close friends with Hitomi and Ryuu, the group dynamics have changed. When Hikaru expresses his growing interest in Hitomi, will Ryuu admit his feelings or let Hitomi slip away...?

7-8) Ryuu seems to have found comfort in other places as Hitomi and Hikaru Taira get further involved. Sexual frustrations finally find an outlet, though misdirected.

9-11) In a startling series of events that lead up to Hydra's transfixing climax, hearts break, enemies resurface, and ties of friendship bind the trio in a complex web of struggle, sacrifice, and redemption.

Part of Rules / Hydra Series

Collection of six short stories.

Dan of Population GO about first story: "An endearing story of a boy who, while visiting his relatives in a rural village, visits a mysterious pond where the local dragon deity supposedly dwells and uncovers a conspiracy that uses the god's name in greed."

Chapter 1: "Dragon Pond"
Chapter 2: "The Night has a Thousand Eyes"
Chapter 3: "The Star of Azure"
Chapter 4: "The Fog, the Rose, the Star, and" ("Mist, Roses, and Stars")
Chapter 5: "The Conch Elf"
Chapter 6: "Maiden of Dragon God Pond"

1-3) Bad Eggs
High School student Morisaki did something unfortunate based on just the slightest passing fancy. For the first time in his life, he shoplifted. However, it was caught on camera by a decent member of society named Harata. After Morisaki pleads with him to keep it a secret, Harata attempts to extort Morisaki. "If you keep me company so I can kill some time, I'll keep your secret."

Thus, we have Harata, a man totally apathetic towards life, and Morisaki, the perpetrator of a petty crime. The final stop on this journey for two misfits of society will be ...

4-5+extra) Nonfiction + An Ordinary Day
Is what's between these 2 lead actors of a gay film the real deal or is it just more acting?

Yasuoka Shion lost her parents, and her voice, when she was young...in a murder.

She was found amidst a blood-soaked room, and the only hint for the suspect was a Shougi board and one piece: the King. Now, Shion steps into the world of female professional Shougi players. As her popularity and fame slowly rises, so do the questions about her past, particularly the murder case that was never solved.

Zankoku na Kami ga Shihaisuru portrays the tale of two step-brothers - Jeremy and Ian, as they strive to discover their separate paths towards redemption.
Jeremy, a sensitive but outgoing 17 year old, is delighted to hear the news of his neurotic and excitable mother's remarriage to a wealthy British man. However, much to his horror, his sweet-talking new step-father Greg, soon begins to exhibit a disturbing trait...he is a sadistic pedophile and loses no time in making Jeremy his target. Months of horrific, systematic abuse drives Jeremy to desperation; he sabotages his step-father's car with the hope of eliminating him. The resulting accident, however, kills his mother along with Greg.
Jeremy's shocked and guilt-stricken behaviour arouses the suspicions of Greg's free-spirited son, Ian. He unearths enough evidence to tie his step-brother to the crime; but in doing so, also discovers the details of Greg's sexual abuse of Jeremy.
Caught in a moral dilemma -- between punishing the criminal and atoning for his father's sins, Ian soon finds himself haunted by lust for Jeremy. Is it lust...or love? He wonders whether he shares his father's proclivities, but finds himself helpless to resist being drawn into a passionate and painful relationship with Jeremy.

Note: Won the first Osamu Tezuka Culture Award Excellence prize in 1997.

When a forgetful man forgets everything, will he lose everything in the end?

About a young girl, a mummy man and an amusement park.

"Wh-Who are you?"

One day, the college student Taichi is spoken to by a stranger in a place that is very dear to him. He is informed by the man, who calls himself Zama, that the place may be gone. It is where the orphaned Taichi first met his beloved guardian Kanda.

Who is this Zama, who suddenly appears before Taichi? Taichi is anxious...

It is the near future and the age of criminal organizations fighting for territory with their own crew has ended as they figured that it was neither economical nor practical. The new method of territory warfare is done with each criminal organization hiring an assassin and betting their land on which assassin survives the modern day coliseum.

Bando Eiji aka Gun Mania is a top rated assassin for the Kuroyanagi group. A young man named Kusano Nonomura of the now overthrown Kusano organization seems to have a vengeance against Bando, the Kuroyanagi family and the entire criminal world. Blood will be shed very soon.

From Jshoujo Scans: Yorika Senoo is taking a picture of Yousuke Shiiba, the guy she likes playing soccer on her phone. She is then hit by the ball giving her the chance to finally talk to him. She returns home to have her dreams crushed as her father is being transferred to London. Not wanting to leave the chance to know Shiiba behind she decides to stay in Japan. Her worried parents allow her as she makes her way to her new share-house with a girl named Yuki Yoshihara...but when she arrives turns out Yuki is a guy not a girl, and his name is Yutaka Yoshihara. She got the kanji confused.

From MangaHelpers:

In 2019, childhood friends Yashio Kaito and Senomiya Akiho are in their last year of high school. Together, they are the only students in the robotics club, which has lost its school funding. Akiho is passionate about robots, and longs to complete building the robot her older sister Misaki began in this same club. Kaito doesn't really care about robots, and is obsessed with video games, specifically "Kill Ballad Online." However, he stays in the robotics club due to his friendship with Akiho. Now, just after Kaito is accused of cheating in his favorite game, Akiho decides to risk her club's existence in exchange for the funding to finally finish her sister's giant robot... [tethysdust]