Ring Ni Kakero (2004)

A villainous masked wrestler becomes a hero for the sake of protecting the orphanage in which he was raised.

Makunouchi Ippo is an ordinary high school student in Japan. Since he spends most of his time away from school helping his mother run the family business, he doesn't get to enjoy his younger years like most teenagers. Always a target for bullying at school (the family fishing business grants him a distinct odor), Ippo's life is one of hardship. One of these after-school bullying sessions turns Ippo's life around for the better, as he is saved by a boxer named Takamura. He decides to follow in Takamura's footsteps and train to become a boxer, giving his life direction and purpose. Ippo's path to perfecting his pugilistic prowess is just beginning...

Eiichirō Maruo (nicknamed "Ei-chan" for his grades being straight "A") is an honor student, bookworm, and is not interested in anything other than studying. In order to solve his problem of lacking physical strength, he enrolled a tennis school and soon found the fascinating side of tennis. Being a tennis newbie lacking physical strength, he supplement his shortcomings with his excellent observing and analyzing skills.

On the run from a past crime, Juzo Fujimaki is blackmailed into joining an illicit tournament and has to face top martial artists in deadly match-ups.

Baki and the strongest Underground Arena fighters face a threat of historical proportions: the resurrected Musashi Miyamoto, Japan's greatest samurai.

The story primarily focuses on the members of the Juken Club and their opposition, the Executive Council, which is the ruling student body of a high school that educates its students in the art of combat. As the story unfolds, both groups become increasingly involved with an ongoing battle that has been left unresolved for four hundred years.

Tennis prodigiy Ryoma Echizen enters the tennis powerhouse Seishun Academy. Once he fights his way onto the team, the game will never be the same.

To gain the skills he needs to surpass his powerful father, Baki enters Arizona State Prison to take on the notorious inmate known as Mr. Unchained.

Honda Goro the son of a famous baseball player loves nothing more than baseball itself. His biggest dream is to show his father that he can become the best pitcher in the world despite all the hardships he had to endure he keeps on running towards his goal at full speed.

A “small” new student, Ushio Hinomaru, appears before the weak little sumo club of Oodachi High School! The words “big” and “heavy” are the rules to this sport, which does not fit this newbie any inch, but this guy goes and does what...!? Ushio and the small sumo club climbs its way to the top! The goal is Hinoshita Kaisan, a title for the highest rank in professional sumo, equivalent of Yokozuna.