From Manga Rebels:

These stories about 4 typical high school girls' love life are Yokoyama Mayumi first work.

1) A Real World
After 2 years Eri got back together with her ex-boyfriend.

2) Lip Lock
Nina made him break his "right hand" so she substituted XX (sexual favours?) to take care of him.

3) That Is My Weak Point
Risa's ex-boyfriend stole embarrassing photos of her, and now she wants to get them back.

4) Hotel Red Peacock
With the current course of events, Chika needs to make her bad tasting Love Hotel prosper.

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Brothers Conflict manga focused on Tsubaki and Azusa.

Chika is a middle school transfer student, and she wants to make friends. But everyone is into karaoke, and she is too nervous and embarrassed to try! Will she be able to overcome her fear and become a karaoka?

In the year 20XX, the decline in birth rates is a serious problem. To counter this, the government has established an outrageous academy. The academy's goal: "To teach boys and girls how to properly date, and in the near-future create good families through marriage." In a school where the doctrine of "love" has gotten out of hand unfolds the ultimate love battle of two virgins!

From Senpai Scans:

I was gently touched by a warm hand. The words that waited in the corner of my heart. That moment held a spark, something not to be shared with anyone else. That's fine. It's because of that it's fine. Your happiness is yours only--... As the title states, a collection of tragic and gentle stories.

A collection of sixteen early works by Nishioka Kyodai, including their three-part debut series. As always the stories range from the whimsical to the surreal, with tales of serial killers, bird women, and a man who one day wakes to find himself with a pouch like a kangaroo.

Watami Meguru pleaded to his mom to let him move out on his own to experience being independent. She finally agrees to let Meguru rent out a room for the summer. But his sadistic mother makes the wall between him and his neighbor out of glass, meaning there is no privacy between the two rooms. If living openly with a stranger wasn’t insane enough, his neighbor is a cute girl his age, Kana. They immediately get off on the wrong foot and this isn’t what Meguru imagined it would be like at all.

An almost road accident victim loses his memory after being pushed to a street power line pole to save his life. Not knowing his identity he is compelled to stay at his savior's residence a gym and boarding house for female wrestlers until he remembers. During his stay he becomes his savior's manservant and the gym's referee trainee.

N/A

After an incident that left Kou Fujimara grievously injured; losing sight from both eyes, the college student undergoes surgery and miraculously survives. However, this event significantly changes Kou's life, as he gains extrasensory perception abilities. Soon, a woman appears, and the boy's life changes overnight.

College student Aki is shocked when a teenage girl suddenly barges into his Tokyo apartment, acting as if he should know her. When the truth becomes clear, the situation is even stranger. The 'teenage girl' is actually his precious pet cat Mill from his home in Kyuushuu, who is apparently an 86 year old 'monster cat' who can change between cat and human forms. Will Aki be able to fit his supernatural pet cat into his ordinary college life?

A princess and her servant, brother- and sister-in-law, doctor and high school girl student, and woman teacher and tattooed man; they are all forbidden to love each other. However, their illicit romances are all the more exciting. The best stories of forbidden love are selected in this comic!

Collection of oneshots:

1) Kizuato by YOSHIHARA Yuki
A woman whose husband was killed in a car accident sexually abuses her handsome servant.
(Also included in Sheets no Sukima)

2) I Want by HOSHINO Masami
An 18 year old school-girl begins an affair with her dentist who is in a marriage that has already turned cold. What does this cute girl with good grades really want from him?

3) Blanc by YOSHIHARA Yuki
Girl is getting married soon and goes to visit her cousin that she grew up with. However they're closer than just family.
(Also included in Sheets no Sukima)

The following have not been scanlated:

「あなたは知らない」by TAKEUCHI Masami
「Secret Noise」by FUJIWARA Akira
「情熱の蝶」by MIZUNO Yuan
「奴隷願望」by YAMAMOTO Kazumi
「君を深く感じて」by OIKAWA Aya

It was difficult for Yuki to have long-lasting love with anyone of her boyfriends. Now she falls in love with Shingo at first sight. He helped her nonchalantly when her separation from her boyfriend got complicated. Since he is five years older than she, his adult love excites her.

Our main character, a college student named Haru, has some..."interesting" tastes. However, all he wants is to be left alone to enjoy the things he likes in peace and quiet. Unfortunately, were he to get his way we wouldn't have much of a story on our hands, would we?

One day a friend of his sees the contents of a certain book Haru has... a book containing some pictures relevant to Haru's "interests..." and, due to a misunderstanding, throws it out the window! What are the contents of the book? Where did the book land? You'll find out when Haru goes to get it back.

Of course it won't be easy, and he might even have a life changing encounter along the way (all thanks to that very same book.)

Manga adaptation of the first instalment of Kyougoku Natsuhiko's award-winning Kyougokudou (京極堂) series of supernatural mystery novels.

Tokyo, 1952: The bizarre case of a missing doctor and his supernaturally pregnant wife captures the imagination of novelist Sekiguchi Tatsumi, so he enlists the help of an old friend, Chuuzenji Akihiko, a bookstore owner and part-time onmyouji who begrudgingly agrees to help investigate the disappearance. They'll face a family's darkest secrets... Secrets that Sekiguchi himself can't escape.

Ge Ming Ming is a foreign student who is also a gambling expert. Due to a certain incident, he is forced to return to a mainland high school to complete his education. But he has not gone to school before, and did not know what is work or even any knowledge of the subjects taught! To obtain a good result, he tried to use his tactics and cheated. In each examination, he, along with the teachers, monitoring equipments and a group of other students who want to cheat undergo a battle of the wits.

From Shoujo Crusade:

When she was young, her parents died in a car accident. Her only relative, her grandma, has also passed way. As such, Kiri is now alone and without support. On the day of her grandma?s funeral, an unknown young man named "Shiina" appeared before her. The truth was, her grandma had been funding this violinist...?

From MangaHelpers:

This peaceful manga features the daily life of Fujimura Sachi and her dog Mozuku. Sachi also has a quirky mother, a father who wears glasses, and a little brother. Sachi spends a lot of time caring for and walking Mozuku, who is a very clever dog with interesting thoughts on his world and the humans that share it.

The story centers around the life of a young boxer named Ryuuji Takane and his sister Kiku, who is his coach. Ryuuji and his sister both inherited their father's talent for boxing with Ryuuji inheriting his strength and techniques while Kiku picked up his talent for analysis and strategy. In the past, their father was a famous boxer. Ryuuji and Kiku went away from home to train and become famous in order to help their lonely mother. On the way to stardom, they have to defeat the strongest challengers all over the world.