1-5) Honey Baby
Already wise to the world and yet still naive to love, 14-year-old Aizawa struggles for affection from the one he loves, his 27-year-old teacher, Tachibana.

6) S
Kaoru is a guy who likes to play the field. He says he's in love with someone else yet in spite of this he still has sex with Junya out of convenience. Seeking pleasure, the two would meet casually several times a month to have a few drinks together and spend the night at a hotel. There was never any sort of confession, but both made known to each that this was nothing more than a sexual relationship. They still haven't gone all the way though and Kaoru never forced him. These sometimes gentle, sometimes sweet situations are starting to give Junya doubts about what their relationship really is. The tension that Junya feels from jealousy added with his uncertainty with what Kaoru feels for him confuses him further and he wonders was love ever there?

7) That's Another Law of Love
Kikuchi has been ruthlessly dumped by his girlfriend, and his classmate, Yada, volunteers to cheer him up. But Yada has his own secrets, which eventually come out, confusing Kikuchi. Bitterly, they both want to know, Why does Love + Sex have to be Man + Woman? Or does it just have to do with love?

8) High Standard Impression

From Chibi Manga:

Ai loves cute things and chocolates. She feels she has become closer to her sempai. And when she was about to confess her love to him,...something happened...

Satoko Tawada is an office worker. She's almost 30 years old, but she still hasn't been able to find happiness in her life. Fate brings her with Mashuu Hayami, a beautiful 12-year-old boy whom she finds practicing soccer all by himself in the park. Out of a whim, she decides to help Mashuu with his practice, with her knowledge of soccer at her disposal. As they practice together on an everyday routine, the two eventually develop an emotional bond. When Satoko's ex-boyfriend deceives her, Mashuu gladly comforts her. And when Satoko learns of Mashuu's mostly absent parents, she starts to concern herself with his personal life. The two lonely souls find common ground and develop an emotional bond that transcends their age difference and circumstances. With this newfound bond, new feelings start to sprout within Satoko. Are these feelings that of maternity? Or is it something else?

Mitsuki had always dreamt of breaking out of her shell and finding true friends as she enters high school. However, she suddenly encounters a group of four good-looking guys from the basketball team, guiding her life into an unexpected direction...?

Because of an order from her grandfather who works as the Grand chamberlain in the Bernadis Kingdom, Michelle took the place of her twin brother and dressed up as a man in order to apprentice as a chamberlain. His Majesty, The King’s beauty is transcending. Michelle works hard in order to not to be discovered while masquerading in men's clothes that she’s not used to. “You don’t listen to my orders? Raise your head.” Every day is filled with worry and anxiety. The future for Michelle that is gradually being charmed by His Majesty The King is….

From MegKF:

A talented young Japanese chef deals with working for the father of the only chef who always gets the best of him. But what are they going to do as this rivalry develops into something else?

There are two extra at the end of each volume. Volume 1 extra is called A Man You Can't Resist. Volume 2's is an extra from Boku no Koe, My Changeable Voice.

A father and son love each other dearly. But when Emily, a girl from Kazui's past, visits them in Japan, their relationship starts to crumble under the threat of their own thoughts. . .

There is also another one by the same name scanlated by nodeadline by the same author but a whole different story.
Basically one doctor is in love with kazui (not sure if it's the same one from nakama version,) and another dr is in love with him, it's quite a sad and tragic story, but its a good one.

When J, the man everyone fears, returns to town, the city's delinquents are in an uproar. Some challenge him, some try to use him, some try to get close to him. Where will J end up at the end of the long struggle...?

Serialized in Weekly Young Magazine from 1983 to 1984.
Volume 1 released in September 1984.
Volume 2 released in February 1985.

On Earth, spirits roam. As thousands of years pass, many curious and peculiar species are birthed. Some spirits satisfy their own desires by devouring weak human begins. With this, a group of humans possessing special powers came into being: exorcists, wizards... Within them, include those miraculous beings who defy natural laws. With one pen, they are able to redraw one's features... We call them: Skin Painters. The manhua tells the story of the master (The Skin Painter) and his disciple as they travel the world.

Yoshida ♂ and Dobashi ♀ are the only students at a branch school in the countryside. Later they are joined a third student, Kobayashi ♀.

From AOC Translations!:
New Tooyama manga to be serialized in December 2015. This love is a new sensation! 1000% heart-pounding. A love for a person she can't say 'I love you' to is about to start. Mayo is a very shy girl. She meets Aoba-kun in her weird part-time job, and they begin to spend their secret time alone, but... The boy she meets is the one she is closest to, but is also the one she can't love. A far too clumsy, secret, unrequited love.

A direct continuation of Umibe no Ètranger that explores Shun's and Mio's family situations.

"I'm gonna take care of you forever...."

College student Minami Shougo regularly visits the office of Kanbara Kenji, a designer prodigy he has been close to his entire life, and whom he loves. Ever since he was a child, Kenji has always been studious and selfish... And Shougo, despite being younger ends up taking care of him. Other than the main story, you'll also find a love story between reunited childhood friends, and a romance starting at a restaurant... This is a collection of dreamy love stories!

Although she had traveled to the Royal Capital to train as a lady of the court, before she realized it, the daughter of an impoverished Earl was seen as nothing more than another of the servants. It was during one of her usual morning cleaning rounds when by chance the Crown Prince Isaac, who was rumored for one reason or another to keep all women at arm's length, passed by, but...

When she tried to return the document he dropped, she got caught up in a maelstrom of trouble!?

And for that matter, what do you mean that happens to all the women who approach the Crown Prince...!?

The man forsaken by the world, the man a slave to money and the man known as the legendary God of War in the highly popular MMORPG Continent of Magic. With the coming of age, he decides to say goodbye, but the feeble attempt to earn a little something for his time and effort ripples into an effect none could ever have imagined. Through a series of coincidences, his legendary avatar is sold for 3 billion 90 million won ($2.7 million), bringing great joy to him, only to plunge him into despair at losing almost all of it to vicious loan sharks. With revelation of money through gaming, he rises from the abyss with new found resolve and steps forward into the new age of games led by the first ever Virtual Reality MMORPG, Royal Road.
This is the legend of Lee Hyun on his path to becoming Emperor with only his family loving heart, his boundless desire for money, his unexpected mind, his diligently forged body and the talent of hard work backing him.
This is the legend of the lowest becoming the strongest. This is the legend of WEED.

Though no one in school aware of it, Ootaki-kun, a first year high school student, is a big fan of 80's songs and idols. One day, he found out that his classmate that sits next to him, Yakushimaru-chan, has the same interests as him...

Set in ancient Japan, involving many explicit steamy sex scenes. Shirou and his little brother are captured by bandits, and he is given two options: become the leader's sex toy, or watch his brother die. (And just wait 'til his brother grows up... sexy boy...) Unlike some other hardcore yaoi, this story *does* have a plot and can be rather sweet and sad at certain moments.

Are you certain nobody steps into your home while you're out ? Have you ever noticed small changes, when you come back home at the end of the day? A cushion slightly moved on the sofa, a juice bottle a little less filled up than when you put it in the fridge in the morning, a shampoo bottle you were sure to have closed that you found open? You noticed, then you went on to your business, because after all it's probably your memory playing you tricks, isn't it?

For Yoko, it's real. Ordinary at first sight, this 21 year old girl has vanished to escape from her former life. We don't see her, but she's here, just under our nose: she lives at our homes during our absence, going from one flat to another depending on her needs and whims.

If this new existence is at first carefree and exciting, Yoko will soon know better. She thought she's the only one like this, she's going to discover a parallel society where violence is ubiquitous. Clandestines, criminals on the run or mere citizens who turned their back on society for more or less honourable reasons, the leeches are fighting over our homes, calling them nests ; they are fighting in bloody wars for territory and lead vendettas that more often than not end up in slaughter.

Sheltered sixteen years old Arisugawa Suzu enjoys, among other things, shougi, rakugo and spending time with his grandfather. While her all-girls school friends dream of having a boyfriend, Suzu’s idea of a pure and proper relationship can wait until her eighteen birthday. A handsome guy and some train encounters later set the beginning of a light-hearted comedy.

Two childhood friends, a boy and a girl, used to share a secret magic. Now that they're in high school though... A story of secret love from an outstanding writer.