Ikkiman is super human alien, but he doesn't know it. He was raised in a farm by an old couple. When his girlfriend dumps him to become a star, Ikkiman swears to himself that he will become a super star even more famous than her so they can get back together, and so he leaves the farm for the city. There, he interrupts the match of the Battle-ball team Blue Planets, the battle-ball champions of the earth, and decides to join them with his superhuman discovered abilities. With the Blue planets, Ikkiman will play against alien enemy's for the title of champion and for the sake of the planet Earth.

The story is about Hikaru Tatsumura who came from Brazil to fulfill his dream to be a great soccer player because he met a great player once who was admired by all people. However Tatsumura is a very cheerful person and easy going except when it is about soccer. He becomes serious and strong. He also gives a unique performance such as doing a funny dance with his buddy after he makes a goal. Tatsumura will face a lot of challenges with his team while aiming for success.

Mitsunari Tokugawa, the organizer of the historic Tokugawa underground fighting ring, has created a tournament featuring 38 of the world's best fighters, many of whom are grandmasters in their respective form of martial arts. With the exception of weapons, anything goes in Tokugawa's ring so that each fighter is able to showcase their true power and strongest secret moves. Baki Hanma earned a place in the tournament due to his status as the reigning champion of Tokugawa's fighting ring. Will he be able to come out on top?

Doppo Orochi sits down to watch the final match of his karate school's youth tournament. Atsushi Suedou, one of his disciples, faces off against Baki Hanma, a fresh teenage boy breezing through the matches. Intrigued by the boy's strength, Doppo, alongside another of his disciples—Kiyosumi Katou— visits the notorious Tokugawa underground ring—a hidden freestyle fighting arena that prohibits only weaponry in its matches. Upon arriving, they learn that Baki is set to face none other than Koushou Shinogi: an infamous karate master and user of the lethal Cord-Cutting technique.