A small group of adults have been invited to a reunion at their old high school to remember the loss of their classmate Kiriko, after receiving a letter "From K."

Not knowing who "K" is, Ryosuke, a young man with short black hair that used to know Kiriko, has to uncover the truth of Kiriko's mysterious death. As he slowly regains his memories and his fellow classmates start suddenly dying around him in the most horrific manner, he realises that it's far too late to say sorry.

A Lone wolf in class that has a good looking face, but a nasty personality.
Seeing Tsuki crying when the "person he likes died", Satori suggests he "introduce girls" to him.
At first Tsuki wasn't interested, but the time spent with Satori gradually turned into a special time.
Despite that, Satori grew irritated to Tsuki, that is, until he falls in love with that person.
Won’t you cry for my sake?

Original Web Comic

Yuu Haruna just moved into town and loves to be on twitter. Out on his way to buy dinner he bumps into a mysterious girl, Fuuka Akitsuki, who breaks his phone thinking he was trying to take a picture of her panties. How will his new life change now?

From asdf scans:

In order to live a normal high-school life, Mirei started her first part-time job. But after receiving her first paycheck, she almost kills a highly-ranked bishounen…?! An encounter with a super poor and pessimistic innocent girl, is this a beautiful miracle?!

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.

Tezuka Kanna, 15, is a girl who loves manga. For that reason, she specifically enrolls in a course for manga in Tokiwa High School as a freshman! No one knows though, that she is already a debuting manga artist. ...But wait, what's this?! Three handsome guys suddenly appear, and what's more they know!!! Kanna (God) vs. Those Guys (Devils)!!! What would happen next?!

14 year old Kimigawa Kento lives separated from his stepfather after his mothers death. A woman visits with a will sayings it's from his biological father. He refuses the will and she tells him the inheritance is approximately 1 trillion yen. He still doesn't what it and threatened with his friends family's jobs at the line he agrees to meet his relatives. But all isn't as it seems. When he arrives at the house they are attacked. And he finds out the true meaning of the will.

Anthology Comic of Slow Start

Yukino Tachibana is a calligraphy prodigy.

At the tender age of 16 she is already one of Japan's most exciting young artists, performing live calligraphy demonstrations to sell-out crowds on worldwide tours.
With her refined, beautiful, and mysterious air, she is so popular at her new high school that she has earned the appellation of 'The School Madonna'.

She is also as dumb as a post.

As artful her brushstrokes, as demure her outward demeanor, the real Yukino Tachibana is far-removed from the image her classmates see on television and in the school hallways - in reality, apart from her calligraphy genius, Yukino is completely useless, rude, and possessing of a distinctly inflated sense of self-worth.

There is only one classmate who fails to be fooled by her facade: run-of-the-mill protagonist du jour Tarou Nakamura. Sitting next to her in class, Nakamura doesn't really get why the rest of the school finds her so enthralling - he's much more interested in his crush, Amano-san. But this indifference might prove to be his downfall, as circumstances cause Yukino to set her eyes on him....

This boy, this poor, poor boy, is burdened with a Herculean task - to keep Yukino's true nature a secret from the rest of the school, while trying to win the heart of his sweeheart. Can Nakamura really keep this brainless beauty's utter idiocy a secret!? And can he win Amano's heart through the power of calligraphy at the same time!?

From Shinnen:

Naraka High School is a seemingly normal school. However, unknown to the public is the cruel truth of what really goes on in the school's halls. Rather than studying, students are forced to struggle for their very survival. And the strong bonds of friendship may be the only difference between life and death.

Ryuuko Matoi is a girl who travels with a single red scissor blade, searching for the wielder of the other blade who killed her father. She arrives at Honouji Academy, a high school that lives in fear. It is ruled over by the fearsome student council, led by the student council president, Satsuki Kiryuuin, who use powerful uniforms to crush anyone in their path. After suffering a crushing defeat at the hands of Satsuki, Ryuuko comes accross a possessed school uniform named Senketsu, who puts himself on Ryuuko, granting her special abilities. Teaming up with Senketsu, Ryuuko stands up against Satsuki and the student council to liberate Honnouji Academy from their iron grip and find out the truth behind her father's murder.

Taichi Yamada is what you would call a fan but he is not just any fan, he is a fan of Kokoro Shiina, a gravure model. Maybe it was fate that brought them together that day but Taichi met Kokoro when she literally fell from the sky. Waking up in the hospital, he begins to see Kokoro's spirit and after roaming the hospital premises a "shinigami" arrives to take Kokoro to the underworld. Is this the end for Kokoro? What will Taichi do to save his beloved idol?!

Seven years ago, Yuto's older sister vanished through a mysterious door, leaving him with only a necklace. Now he has once again seen that same door, and watched two mysterious girls (Saya and Hina) go through it. Eager for clues about his sister's disappearance, he and his pet cat follow them through. However, he soon finds there's a reason his sister wouldn't let him come with her. In the deadly world on the other side of the door, his ignorance leads to tragedy. Now Saya insists that he travel through the door once again, to search for a way to retrieve the lives that he caused to be lost during his first journey.

Synopsis (translated from webtoon) “No matter what your dream is, as long as you don’t give up, we are friends who walk on the same path” Come join Dacha and her crazy gang at Dacha’s Kitchen today!

Pairing: Kotori x Nico

Manabe is a shy girl who is in love with her classmate Yasukawa, an outgoing and attractive girl. To her surprise, they end up in the same class and are deskmates. A bittersweet teenage love story.

What the young girl rents is not a movie, but a brother, and the wonderful warm feeling of spending time with him. With her parents deceased, and her once kind brother changed... What the girl seeks is the warmth of a family that she once had. Even if it's a rental one.

A novice Shade Hunter forms an unlikely friendship with a teen zombie as they journey together, taking on the powerful Shades, dark creatures of the night determined to enslave humanity.