Kenichi: The Mightiest Disciple

While running late for class, Kenichi bumps in to the new transfer student Miu. At the karate club, Kenichi is challenged by another student Daimonji for a match. With the loser losing the right to be a member of the club. On the way home, Kenichi is awed when he sees Miu easily defeat a group of thugs. On Miu's advice, he heads to the Ryōzanpaku dojo to train in martial arts.

Kenichi begins his training at the Ryōzanpaku dojo under the guidance of Akisame. The training focuses on building strength and stamina. Concerned about Kenichi's 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.

After watching Kenichi defeat Daimonji, Tsukuba, the strongest member of the karate club, gets suspicious of Kenichi's abilities. At the school Miu, joins the girl's gymnastics club and soon becomes the center of attention after displaying her abilities at gymnastics. Kenichi desperately tries to avoid Tsukuba, but is soon caught and gets beaten to a pulp. Seeing Kenichi repent his loss to Tsukuba, Akisame decides to start training him in some martial arts techniques.

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.

With the news of Kenichi's victory over Tsukuba spreading all over, the strongest gang in the prefecture Ragnarok now has their eyes set on Kenichi. All Kenichi can do now is to train and prepare for the worst. For a change of pace, his teachers suggest that he goes on a date with Miu but they seem to have an ulterior motive.

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 he's going through.