Kōkō Tekken-den Tough (Japanese: 高校鉄拳伝タフ, literally "High School Iron Fist Legend Tough"), is a martial arts manga series written and illustrated by Tetsuya Saruwatari. A sequel series, titled simply as Tough (TOUGH—タフ— Tafu) was introduced in 2004 which continues the story further after the first series ended its run. A spin-off series, Oton (おとん), has been serialized in Business Jump since 2004.


The story revolves around Kiichi Miyazawa, a 17-year-old teenage high school student and his father, Seiko Miyazawa, who is training him in the family's secret martial art, Nadashinkage-ryu, a fighting style that was created around the end of the Meiji Era Japan. The style itself uses punches, kicks, throws, grappling, as well as knowledge of striking pressure points and vital points on the human body. With a passion for martial arts, Kiibo is striving to become strong by testing his skills against various fighters from different areas of Japan, as well as the world, via street fights and tournaments. In the second part of the story, The story starts two years later after the end of high school iron fist legend, the main protagonist Kiichi Miyazawa “Kiibo”, became the heir of his family’s martial art Nadashinkage-ryu after the previous one his father Seiko Miyazawa suffered a crushing defeat at the hands of his evil twin brother and Kiichi’s uncle Kiryu. In order to pay for hospital bills Kiichi has turned to fighting in illegal underground matches called dark fights in which almost anything is allowed. Kiichi has become a mainstay in these fights, not only because of his outstanding victories but that he refuses to seriously injure any of his opponents, upholding his father’s teachings of never killing anyone.

Power of the Verse

This verse has various human fighters ranging from peak human to superhuman in term of both destructive power and speed. Top tiers of this verse are around Wall level to Room level in Attack Potency with Subsonic combat and movement speed, capable of blitzing and disappearing from human sight.

Supporters and Opponents of the Franchise






Edgard C. Garcia

Iron Kiba

Kakugo Kusakabe

Kiichi Miyazawa

Kiryu Miyazawa

Marcio Naito

Seiko Miyazawa

Son'o Miyazawa