Shirahama Kenichi normal bir öğrencidir. Lakabı "zayıf bacaklar"dır. Bir gün şirin bir kız olan Furinji Miu ile tanışır. Ona gizemli dojoyu öğretmekte yardım eder. Kenichi daha güçlü olmak için farklı savaş teknikleri ile sürekli alıştırma yapar.




Bölüm Başlıkları
1. The Place Where Heroes Gather
2. The First Step! The Start of the Battle
3. Strength and Courage! For Protecting Justice
4. Fighting Hell! To Fight Or Not To Fight
5. A Date? Must Move Forward!
6. A Day At Ryouzanpaku! The Dream On The Roof!
7. Battle! The Gang Fights Back!
8. Amazing Muscles! The Sensei`s Secret
9. Apapapa! Apachai's Training
10. Run Kenichi! A Boxer's Weakness
11. The Fist of Bestrayal! Takeda's Sad Past
12. A New Enemy! Tsuji Shinnosuke!
13. Killer Fighting Techniques! Rules of a Battle!
14. Training of life and death! And we're also going to mixed bath
15. Honoka Sneaks In! Ryouzanpaku`s Guest
16. Ryouzanpaku`s Biggest Crisis!!?
17. Protect the Sign! Attack on the Dojo!
18. Amusement??? To the Secret Furinji Island!
19. Ragnarok`s Strongest! The Arrival of the Eight Fists!
20. Takeda in Danger! The Rules of Revenge!
21. Unforgiveable!! Kenichi's fist of fury!
22. Meet the Youth! New White Combination formation!
23. Attack! The Neighboring Ryouzanpaku!
24. The Stolen Heart! Miu's Juliet!
25. Protect to the Death Kenichi! Miu's Lips
26. The Mask Removed! Hermit's Real Identity
27. Hard vs. Soft! The Siblings Quarrel After the Long Separation
28. The Assault Commander Joins In! Restaurant Scuffle
29. "What Fear, Seig! Prelude for destruction"
30. The Results of Training! The Effects of Moving in Small Steps!
31. Honoka, I’ll save you
32. Honoka’s in Crisis! Loki’s Scheme!
33. Take Him Down, Kenichi! Let Your Fists do the Talking!
34. Without being defeated! The word to which the person whom it loves leaves
35. There is no nuisance! Now at the time of conclusion
36. Miu vs. Renka! The Triangle that Calls up a Storm
37. Dangerous temptation it is dense together!
38. Human bullet game of lovely kitten women!
39. Shigure's Personal Teachings
40. The Promised Land! Everything Starts from Here
41. Seikouken's Terror! The Dragon's Dance Descends
42. Elder's Special Training Do Or Die Mountain Seclusion
43. Limiter! An Invitation to Shurado
44. Shinpaku Alliance Crumbles! The Mad Fist Draws Near
45. The Determinant Blow! Sakura, Dance
46. Farewell!! Shinjima's Resolve
47. A Genius's Weakness! Effort can Surpass Talent!
48. Summit Showdown! The Man Who Carries The Spear of Legend
49. The Strongest Transformation! Rhythmn Ryouzanpaku!
50. "Shijou Saikyou no Deshi Kenichi"