Kenichi: The Mightiest Disciple

Kenichi begins his training at the Ryōzanpaku dojo under the guidance of Akisame. The training focuses on building strength and stamina. Concerned about Kenichis fight with Daimonji, Miu secretly teaches him a stepping technique to maneuver around. Even though Kenichi is able to defeat Daimonji at the challenge, he yields his membership of the karate club after being accused of using a throw in a karate match.

Kenichi is easily defeated by Tsukuba despite his heavy training, so he becomes greatly demotivated. With a desire to become stronger and more courageous, Akisame-sensei agrees to finally teach him martial art fighting techniques. Kenichi is put through more rigorous training from the four masters of martial arts. Sakaki-sensei takes a liking to him, so he teaches him a technique that a Sports Karate Style user is vulnerable to. Eventually Kenichi runs into Tsukuba and fights him again, this time he uses the techniques taught to him and he emerges victorious in the battle. Little does he know what troubles he will face as a result of it in the future.

Kenichi decides to spend the entire weekend at the Ryouzanpaku dojo and train for his imminent fights. His little sister then goes to check out this dojo, to see what kind of torturous things hes going through.

The attacks on Kenichi are now becoming a daily occurrence and one day his opponent ends up pulling out a knife against him. Because it was his first time against a weapon, Kenichi freezes up, forcing Miu to save him. Now Shigure-sensei, the weapon specialist, has now decided to teach Kenichi the basic art weaponry.

Takeda Ikki, the puncher from the Ragnorak gang, is still searching for Kenichi but has had no luck so far. So he decides to hold some of Kenichis so called friends hostage to lure him out. Now it is the time to see if Kenichis training on Muay Thai, with Apachai, had an effect.

Kenichi feels uneasy about how he should express his feelings to Miu. After Kisara hears of Takedas defeat Tsuji Shinnosuke is sent to kill Kenichi, however he invites him to join his gang instead. When Kenichi refuses and debunks his way of thinking, Shinnosuke challenges him to a fight.

After his defeat with Shinosuke Tsuji, the masters decided to have Kenichi live with them. This would include 24 hour hell-like training. Kenichi accepts with the idea that he would be living with Miu under the same roof. Kensei later drags Kenichi do a "special training" with him by tryring to peek on Miu and Shigures bath unnoticed.

Kenichi and Mius homeroom teacher pays a visit on Ryōzanpaku to check on her living conditions, and the members of the dojo decide to forge a story to deceive them.

The gang leaves with Honoka to a special summer spot.

After becoming one of the eight fists, Kisara starts to hunt on those who deserted her. Takeda is attacked by Kisaras gang.

Niijima puts his master plan to create his personal legion in motion.

Natsu Tanimoto, the president of the drama club, invites Miu to perform "Romeo and Juliet" together at the schools play, to the despair of Kenichi.

Kenichi discovers that Tanimoto is in fact Hermit, the 6th fist of Ragnarok, and must fight for his life against him.

Kenichi receives an anonymous love letter, and while going to meet the person who wrote it, he ends up seeing Niijima and his Shinpaku comrades in trouble.

Kenichi finds himself in dificulties against Seigfried, until he starts to put into practice all of the fruits of his training.

Loki kidnaps Honoka and attracts Kenichi to an old church, where he meets Hermit, and their fight begins.

Kenichi and Hermits fight is interrupted by Loki, who using Honoka as a hostage, renders Kenichi unable to fight back, much to Hermits anger.

Renka discovers where Kensei Ma is living and appears in Ryouzanpaku, determined not only to bring her father back home, but to win Kenichis heart too, much to Mius jealousy.

Thor gets punished by the rest of the Eight Fists League after he chooses to leave the gang. Kisaras unwillingness to join in the punishment makes the others suspicious of her allegiance. Later, Kenichi and Miu spots Kisara taking care of an abandoned kitten, and decides to help her find a home for the kitten. Seeing that Kisara has made contact with Kenichi and Miu, Freyas personal guards attack her for her supposed betrayal.

While trying to recall his memories involving his ying-yang badge, Kenichi ends up meeting Odin, the supreme leader of Ragnarok, and their past connection is revealed

Kenichi trains with the Elder himself in order to surpass Ryutos technique by training in the center of Japan called Yamagata which Kenichi has to survive in for 7 days and 7 nights but, can he survive? And Niijima tries to recruit Kisara by using her love for cats.

Kenichi continues his training with The Elder while the Shinpaku Alliance tries to develop a unification with Kisaras subordinates. Meanwhile, Berserker and Freya begin to hunt down the Shinpaku Alliance.

Ragnarok discovers Niijimas Shinpaku Alliance hideout. Loki has his underlings surrounding the building to put an end to the Shinpaku Alliance. The rival gangs go all out in this decisive battle. Kenichi receives a message from Niijima and becomes concerned about the situation back home.

Berserker has been defeated by Hermit, so Kenichi challenges Odin to a second fight. Ryoto accepts the challenge and the long awaited battle begins. Kenichi makes full use of the training he had received from Furinji-sama. Kensei eagerly watches the fight between First Fist Odin and Kenichi from a distance.

Cornered by Kenichis unexpected reaction, Ryuto utilizes a dangerous technique to rise up his power beyond his bodys limits, and the reason for his grudge on him is revealed. As their fight comes close to a conclusion, Kenichi continues determined to win, not only for his own sake, but for his childhood friends too.