From Wikipedia
In the manga and anime, Tiger Mask (whose real name was Naoto Date) was a feared heel wrestler in America who was extremely vicious in the ring. However, he became a face after returning to Japan when a young boy said that he wanted to be a villain like Tiger Mask when he grew up. The boy resided in an orphanage, the same one that Tiger Mask grew up in during his childhood. Feeling that he did not want the boy to idolize a villain, Tiger was inspired to be a heroic wrestler.

The main antagonists in the manga and anime was Tiger's Cave, a mysterious organization that trained young people to be villainous heel wrestlers on the condition that they gave half of their earnings to the organization. Tiger Mask was once a member of Tiger's Cave but no longer wanted anything to do with them, instead donating his money to the orphanage. This infuriated the leader of the organization and he sent numerous assassins, including other professional wrestlers, to punish him.

Most of the environment and characters were fictitious, but real-life pro wrestlers Antonio Inoki and Giant Baba were included in the manga and anime as well.

From Easy Going Scans

Ever wonder what happens in the aftermath of a super hero and villain battle? Well someone has to clean up the mess, and they are called SHADOW.

Komachi Mizuno's family runs a shrine and a sword fighting dojo, but she doesn't like fighting and often skips out on practice. On Komachi's 16th birthday, she is mysteriously transported to another world similar to classical Japan.

A series of short stories that take place throughout the Universal Century Era.

A group of thirteen boys join the children's crusades of 1212. Violence ensues.

The story focuses around Makoto, a student who's talent is making stuffed toys. He starts researching the mysterious disease going around called 'Sudden death' after finding out that his latest creation looks like the mysterious stuffed rabbit rumoured to be causing it.

The story of the endless battle between Monsters and Exorcists. Except this time the main characters are the Monsters.Coming soon!---------------------------Author`s comment: I`m AI an independent artist. Check out my other works (TheLastPierrot and Bleak) and my website and facebook:http://www.thedreamcatcherz.com/ https://www.facebook.com/TheDreamCatcherzIf you like my stuff please share it with your friends, as I said before I`m an independent artist, I make no money doing this, the readers feedback is really important to me.Thanks

The emergence of a mysterious young judoka, Yanagi Hana, who defeated world class judoka Ida Keiji, will be taking part in the Judos fest in Yahara Village, the mysterious village of Judo he comes from.

Hero and Mii are two newlywed six year olds. And that's only the beginning!

From MangaHelpers:
Being one of the few longtime friends with Onizuka (GTO), Danma Ryuji has seen all the fiascoes he has gotten into. But the motorcycle shop owner and self proclaimed fastest driver in the city is about to get into a world of trouble. A hot teenager named Ishikawa Mimon starts taking interest in Ryuji, but contrary to her appearance, she's a dangerous person that will put Ryuji into life threatening situations. Even though he has a beautiful girlfriend named Nagisa, Mimon is about to wreak havoc in Ryuji’s peaceful life.

After being betrayed by his country, Jirou left his past as a hitman behind and came back to Japan where nothing mattered anymore in his eyes. But that's before he meets Nami, an active hitman seeking vengeance for her father's death. But not any hitman, a wallman! Jirou is then brought back into this world and teams up with her.

From Girls' Generation Scanlations:

Enter Weiter Andreon, a young witch with special abilities to communicate with fairies. That day, saddened by her parent’s death, Weiter wanders into her back garden where she finds a wounded young man. Weiter decides to take this young man under her wing despite meeting objections from everyone else but her uncle's friends. In the magical lands of Alma, where Gurens are worshiped as guardians and protectors, Weiter finds herself beginning a new adventure with this mysterious young man who appears to be more than what he seems.

From VIZ: In 2015, the "Angels" have returned, and Shinji Ikari, a fourteen year-old child of the new Earth, is forced by his father -- Gendo, commander of the secret organization NERV -- to pilot the monstrous biomechanical weapon called "Evangelion" to match the Angels' fearsome power...

Miharu is smart, attractive and talented. One could say he's been playing life in "easy mode". That is until a teddy bear steals his wallet and a strange man comes out of an arcade game and demands Miharu play a game; the D-game! What's worse, the man even claims to be from the future. What will happen when Miharu must play to survive?

Daigo Kagemitsu, who works for a Samurai general in Japan’s Warring States period, promises to offer body parts of his unborn baby to 48 demons in exchange for complete domination of the country. When the baby boy is born, Daigo has him thrown into a river, expecting the boy to die. A kind sage, however, finds him and adopts him. The sage fits out his poor son with prosthetics.

Time goes by and the baby grows into a boy who calls himself Hyakkimaru. Every time Hyakkimaru eliminates a demon, he retrieves one of his body parts. Hyakkimaru rescues a boy thief named Dororo from a band of men whom the young boy tried to rob. Together they travel the countryside in search of the demons who possess Hyakkimaru's parts. Throughout their travels, they face a host of monsters and ghosts.

From MangaHelpers:
Humanity has found the perfect energy source that gives the wielder near god-like powers. This energy source has been named "Demon". The rare individuals that have the capabilities to wield this power are known as "Mediums". To become one of the Mediums, Taichi has transferred to the Meissner School. On the first day of transferring into the school, he literally runs into an energetic girl named Nui. She is a Medium and attends the Meissner School. Taichi will require her help to become a Medium himself and survive against hostile Mediums.

A boy loses his parents in a supernatural disaster known as a "Curse" and is then adopted by the Tsuchimikado family; a family that exorcises curses. Ten years later and the boy has become the head of the family and now goes about exorcising curses all the while trying to balance his job as an exorcist and his life as a student in high school.

This is a tale about a floating continent . 6 years ago , a disastrous monster attack marked the beginning of mankind's extinction . This is a story of the remaining survivors who struggle to fight and learn about these mysterious monsters as they prepare for a great counter attack . Will they succeed and regain their rightful rule of the continent? Or perish before these monsters.

"Abnormal" is about people that live in a world that can only be seen by those who live on it, but what happens on this world will save or destroy the future of humanity. A slavery-addicted girl named Seimina Yuri find out that she is an Abnormal and starts to fight in this world for her own survival, until she discovers that the world will need a new god.

From Viz:
140 years ago in Kyoto, with the coming of the American "Black Ships," there arose a warrior who, felling men with his bloodstained blade, gained the name Hitokiri, man slayer! His killer blade helped close the turbulent Bakumatsu era and slashed open the progressive age known as Meiji . Then he vanished, and with the flow of years, became legend.
Ten years later, a young woman's life is saved when she happens upon a strange wandering swordsman named Kenshin. The young woman accepts the wanderer into her dojo, despite his secretive past, and the two become fast friends. As their relationship grows, they meet and make more friends (as well as enemies), and they grow accustomed to their life together.
However, one man can only run from his past for so long, and it isn't long before Kenshin is forced to face the life he thought he'd left behind. Now, together with his friends, he must fight the ghosts of his past if he wants the people he loves to have any kind of future.

Contains a side story called Yahiko no Sakabato.