It was later released in the "30th Aniversary - Ay", a special book.

From Friendship Scans:

In the history of the Kingdom of Siegerland, there has always been a powerful Shadow Messenger who acted as a guardian for the country. Yet the Shadow Messenger himself doesn’t have a shadow!
Every Shadow Messenger chooses a guardian out of all the knights. In order to show his devotion, the knight then offers his own shadow as a gift to the Shadow Messenger and by that becomes a Swordsman.

Lisa is a normal girl who leads a happy life like everyone else, when suddenly her father dies a tragic death. From that day onwards, her mother forbids her to leave the house. In the end, she secretly steals away with her childhood friend Louis. They are playing outside, when her playmates die under strange circumstances… Only Lisa survives, but she lost her memories of that day...

Volume 8-9 is a special one, as it talks about Rapunzel's side story.
This is an additional volume called Koori no mamono no monogatari Gaiden, which is an anthology of short stories featuring different protagonists of Koori no Mamono no Monogatari,

In the feudal era of Japan, Ogami Itto is the elite executioner for the Shogun until the ruthless Yagyu clan frames him in an attempt to gain the position. His name dishonored and his wife murdered, Itto and his infant son Daigoro wander Japan as an assassin for hire, named Lone Wolf and Cub. Ultimately, Ogami Itto strives for revenge against the Yagyu clan.

Souma Kenichi is in a bit of a pickle. A group of thugs has cornered him on the side of the road and seem very intent on his life. Desperately fighting them off with the longsword he can summon at will, he is saved when a famous teacher of the Miyazaki School and his student intervene on Souma's behalf.Confused but grateful, Souma learns that the sword he wields is called a "shinbuki", or true weapon. Stronger than any steel blade, a shinbuki is created by channeling inner energy into your surroundings and materializing it into a weapon. Normally, learning to wield these supernatural weapons takes years of training under a master. However, a coveted few like Souma are born with the ability to wield shinbuki at birth, and master its use at a startling rate. These rare prodigies are called "Tensaiji".Hunted by a mysterious organization intent on eliminating him before he can become a threat, Souma has little choice but to accept his benefactor's offer of free admission into the Miyazaki School.Note : This manga read from Left to Right

This manga was writen to promote the TV series by the same name licensed by ADV. It covers situations not in the anime. It's about a cute female robot that has the brain of a cat.

The story takes place in the middle of the 21st century when global warming has turned Tokyo into a tropical city. To reduce the temperature at the heart of the city by 5°C (9°F), the city is being reborn as the world's largest forest city. However, despite the flow of refugees to the new city of Atlas, there are not many residents who can actually live there. Moreover, anti-government guerillas are attempting to stop the forestation.

From inmeliora:

Eight years ago, Mio, the princess of the White Kingdom, and Sakuya, the second prince of the Dark Kingdom, became friends when she got lost in the forest and Sakuya helped her. They were friends until one day, three years ago, she was sucked into a hole and went missing, and Sakuya is determined to find her. In the three years since her disappearance, he became friends with her older brother, Rui, the second prince of the White Kingdom, even though their two kingdoms don't get along. One day, while joking around, a hole opened up in the sky and a girl fell out of it. Sakuya had dreamed this would happen, but who is this girl and why did she fall into heaven?!

From Kokoro no Oasis:

Young Nico and Jean are best friends who have always dreamed of adventure. They finally get their chance when they meet Ibis, a mysterious woman with wings.

Contains six short stories:

• Kuzeinke no Saidai no Show

• Seifuku wa Hugenai

• Brigit no Bansan (Brigit's Supper)

• Shizuru Cinema

• Kasou Senryaku - Kagami-uchi (Mirror Play)

• Emerald
Who cheated? Who Won? The lies and the truths? In the city of west where injustice prevails. Only a 'game' divides the living and the dead.

"Ness' Great Adventure, a manga comic that closely follows the story of Mother 2, in the comic, like Mother 2 it includes weird humor and interesting uses for items much like the "Help!" description option in Mother 2. Added in this comic are discussions between Itoi, Itoh (the guy who drew this manga, and also did the character design in Mother 2) and Kohichi Ohyama (Art Director), who talk about what the actual meaning of "Mother" is, and other stuff." - from Starmen.net

After an explosion, You XiaoMo finds that he is now a probationary disciple of the TianXin sect. However, he is one with dubious potential, so just when he starts to adapt to his new circumstances, he receives a piece of bad news. If he is unable to produce the required result after half a year to become an official disciple of the TianXin sect, he would be driven out of the sect……

While You XiaoMo is going all out to earn money, he runs into Ling Xiao. To his horror, he later discovers that Ling Xiao is really someone cloaked in human skin ……

(From LiveJournal S3ri)

Once upon a time, there were many mysterious and strange animals, immortals and monsters How did they look? A snake with a human being face, a dog similar to a cat, a bird with colorful feather... Are they still alive? God knows, maybe extinct, maybe still living among us...

[From Nausicaa.net]:

Shuna is a prince of a very poor country. His people have very little that they can grow on their poor land, and are starving. Shuna hears of the Land of the Gods and of the Golden Wheat growing there, and so he journeys there to bring the seeds back to his people. After a very long and hard journey, he finally reaches the Land of the Gods, and steals some seeds. But he is severely punished for his crime. However he is nursed back to health by a girl whom he once rescued from slavery, and who now lives in a mountain village. She also plants Shuna's seeds and protects them from the elements. Eventually, the crop season comes, and she now has to choose a husband...

Nails is a geneticly altered human,that now hunts others like himself,however the reasons behind that hunt or why was he turned become meaningless when the most important part is why he is him,learn who was the boy of yeasterday and how he became the man of tomorrow,not through word, through memory.

Jung Won-Jun, a Korean who became the owner of a poor fief. In an attempt to make it prosper, he explores a dungeon. Orginal webtoon http://www.foxtoon.com/comic/maze_age_Z 

It was supposed to be just a regular daily bus drive to their high school for Watanabe Sheena and her friend Yuki, but when the bus enters a thick fog, the unexpected happens and the bus gets transported to another world that seems prehistoric. With the bus driver gone, the only other passengers on the bus in this mysterious world are all high school girls: Izumi, Ayu, Kyoka, Anna and Jessica. With no cell phone or internet signal, they are completely cutoff from their world. To make things worse, they see hundreds of glowing eyes of predators at night waiting for the girls to make a mistake. How will seven high school girls survive in this treacherous place and get back safely to the real world?

A spin-off of Kono Subarashii Sekai ni Shukufuku wo! that focuses on Megumin. Adapted from the light novel series of the same name.

A warrior, plundering the people for money, finds a military dog, a creation with the power of a dog and the intelligence of a human, and takes the dog in as his own and becomes the dog's master.

Stardust Memories is a short story compilation of human beings in the distant future where we have traveled deep into space. Each story describes a moral dilemma that people traveling in space may experience which is something that we have yet to determine in the current world.

Stardust Memories talk about such problems as the implications of having people travel for years, even decades, in the cold, quiet and endless universe. A different story tells on how human presence in a foreign galaxy will affect the environment. The topics the author decides to write about are interesting and makes you wonder about the future.