The story takes place on a island with no people to live on it expect one man named Oomori. While he was trying to sleep one night, a little spaceship landed in the water by his island. It appeared to be an alien named Jako. Jako's spaceship is broken so he has to stay there until it is fixed. He says he as come to Earth to learn of it's ways. And Oomori doesn't like people but decided to help him.

Omaezaki Sanemichi was born into a near-perfect existence. His family is wealthy and powerful, and he's good-natured, smart, and athletic as well! All the girls at his high-school dream of having a Cinderella-style romance with him, and, though they are desperately jealous of him, none of the boys can come up with a legitimate reason to publicly hate him.

But one day the unthinkable happens: Sanemichi's family's flagship company collapses and his father flees. Sanemichi and his former servants, the teenage siblings Natsuno and Asasuzu and the absent-minded old man Furukawa, are left without a dime. Will Sanemichi be able to maintain his gentlemanly behavior despite the humiliation and many hardships that face him?

All humans are wolves in sheep's clothing and the same applies to Douchinji Youichi, a boy who always daydreams about various things, but never says anything out loud. One day, upon seeing a red full moon, a girl came dashing at him before punching him with a silver knuckle, knocking him unconscious and unable to really remember the incident. The next day, a new student, Akatsuki Ayame, joins his class.

On his way home, Youichi discovers that the girl who punched him is Ayame, and her silver knuckle draws out what she calls a "wolf", a person's inner thoughts or desires, from a "sheep", the superficial mask which restrains the inner "wolf" from surfacing. However, when someone is full of desires and becomes obsessed with their inner thoughts, the "wolf" outgrows the "sheep" and the person will be able to see the World of Red Moon. The girl explains that she doesn't have a "sheep" and would like to have one, so she requests Youichi to become her "sheep". Youichi agrees to it, marking the beginning of a story of the red riding hood who devours the wolf.

One of Go Nagai's first works, this violent period piece takes place in the 1500s and stars a talented, low-ranking ninja named Shishimaru. In it, Shishimaru fights against Ginnai Doma (an immortal samurai who, despite being butchered multiple times, doesn't die) because Ginnai murdered his comrades.

Despite being set in historical times, it has time travel, aliens and the alternate universe war.

Sakura (a down-to-earth chick), Akane (a loli), and Yuriko (an otaku) have been friends ever since they met in high school. They all wanted to become teachers and now that they've grown up somehow agreed on living together. The story depicts their lives as teachers.

During the second half of the 19th Century, Europe became fascinated by Japanese culture. A young Japanese girl named Yune travels to France, where she starts working in a shopping arcade in Paris at a crafts store called Enseignes du Roy. She and the store owner named Claude cooperate with one another in order to get over their cultural differences. This is the story of Yune's stay in Paris.

Shogi, also known as Japanese chess, is one of the most popular board games in this school and a way for school gangs to challenge and bully others. Yuuki is the boy that gets bullied most of the time and he never won once in fighting. While the bully is running after Yuuki, he got both of them in trouble as he messed up with the violent Shogi Club. Now they are forced to duel in Shogi and the loser will be beatened up. Yuuki's Shogi adventure sets off from here. Will he be able to defeat the bully and take his revenge back?

From CMX:
To seek a quieter and happier life as an ordinary high school girl, Tsubura's just moved from a big city to her grandmother's house in the countryside. On the first day at her new school, she gets through an awkward introduction to her class, when, an errant baseball shatters the window from outside. To everyone's surprise, Tsubura leaps into action, catching it and whipping it into the mitt of the pitcher below. Her rather acrobatic catch-and-throw makes boy students get down on their hands and knees and beg Tsubura to join their school's baseball team. Although the boys have tried to get into the division championships, the team is too weak. For Tsubura, baseball is exactly what she wanted to avoid, so she flat out refuses to join the team. Will Tsubura bow to peer pressure and ultimately take the pitcher's mound?

The story behind the day of Full Moon three centuries ago and the day of Full Moon present day. The story is revealed around the gods and people involved in the incident!

A tale from Rain's younger days when he was searching for a new teacher:

Upon the death of his old master, a young swordsman embarks on a journey to the legendary Country of the Mist where the one he was recommended to is said to reside.

The story is set in a middle school in Shishibone city. Tomohiro Miyajima, the main character of the story, and his group of friends are busy studying for an exam. One day, in search for a thrilling mystery as well as easy money, they take several donation boxes and fabricate a curse to scare everyone: “Ohone-sama’s curse”. After scrawling 骨 (bone) all over the chalkboards and spreading rumors of the curse, the donation boxes are quickly filled and the curse becomes a major legend of the school. Of course, only Tomohiro and his friends knew the curse was fake. It wasn’t possible for anything to happen.

That is, until they receive a donation of 50,000 yen and a letter to go with it, reading: “Please curse Tanashi Miyoko”

Immediately after that letter, bullying and crimes in the school escalated, strange incidents occur, and Tomohiro and his friends are left with a much bigger mystery than they wanted to have, that they are forced to investigate by themselves. What happened shouldn’t have happened. Those who are alive should not be alive, those who know what they know shouldn’t have been able to know, and familiar faces are hardly what they seem, but why? And how?

—Note: The world that this story is set in is the world shown at the end of Higurashi Kai, where Frederica Bernkastel meets Tanashi Miyoko and Miyoko’s parents do not die.

Spin-off of JoJo's Bizarre Adventure Part 3: Stardust Crusaders. Gives an inside look on Oingo and Boingo's way to kill the Crusaders.

From The Zero Alliance:
Every ten years, a young woman is offered as a sacrifice to the mountain god.
When the tengu goes to see the sacrifice, he finds out that the sacrifice actually volunteered for the role.
And the sacrifice turns out to be a young boy.

A oneshot by NisiOisin and Miyokawa Masaru:

Sunaki is a back-up player on the baseball team. One day, he finally gets the courage to put a love letter into the school idol's shoe locker, but where will his actions take him?

(The title is a play on words: 変身願望! (Henshin Ganbou!), or Desire for Change!, vs 返信願望! (Henshin Ganbou!), or Desire for a Reply!)

Oneshot from NisiOisin and Kawada Yuuya:

A boy suddenly wakes up to find out he's in the body of a high School girl. Who is she and how did he switch bodies?

Angelica North has lost her parents in a fire accident. She blames herself for their deaths, and this has driven her to darkness. Sylph Rave is an 'occult writer' who is rumored to see ghosts. These two strange, rumored characters are driven by fate to meet. How will Sylph help Angelica? What other mysterious things will haunt our troubled heroine?

Sae, a young lady of a wealthy family, sometimes can't control herself and gets the urge to behave in a manner unbefitting of her upbringing. It's her butler's job to intervene.

This is the original Niconico Seiga version of "Domino Kick - Naraberareta Domino o Kick Shitara Dou Naru no Kashira?" (I wonder what would happen if I kicked a line of dominoes). As opposed to the Gangan Online version, it doesn't have the subtitle and has a partially different set of chapters.

spin off from the famous manga Negima with negi as the older character and teaching a kindergarden class

Walkure Romanze's story revolves around Takahiro Mizuno, a student studying at an academy with jousting as its main focus for sport. Takahiro acts as an advisor to the riders of the sport. Takahiro goes through each day tediously until the time of the annual competition draws near. Due to some odd circumstances, his childhood friend Mio Kisaki is enrolled into the competition. As she has never even rode a horse once in her life, Takahiro senses the fear in his friend and becomes Mio's coach.

The daily hardships of Hikage Miyakawa, a young girl who lives with her sister Hinata. Due to Hinata´s otaku impulsiveness to constantly buy merchandise, the two girls struggle everyday to have something decent to eat.