is a Japanese manga by Syun Matsuena serialized in the weekly manga magazine Shonen Sunday from August 2002 to September 2014. The narrative focuses on a 16 Kenichi Shirahama -year old high school student as well as a longtime sufferer of intimidation. In the beginning of the story, he befriends want to eventually become more powerful; and transfer pupil Miu Furinji, he follows her a dojo home, to Ryozanpaku several masters of martial arts that are varied, directed by her grandpa Hayato Furinji. After learning principles from Miu, Kenichi beats a high ranking member of the karate club of the school, and becomes a goal for the delinquents in the institution. Kenichi becomes enamored of Miu, and finally becomes a complete disciple of Ryozanpaku while initially training to guard himself. Later, the day-to-day routine of Kenichi is broken up between training below his battles against the members, and the six masters of Ryozanpaku of ‘Ragnarok’, a gang of bullies trying alternately to recruit or to vanquish him. Miu and Kenichi are targeted by Yomi after Ragnarok is disbanded, several disciples personally trained by means of a master of an organization matching Ryozanpaku, Yami. While the masters of Ryozanpaku and their…
