Reception
By February 2012, the manga had over 12 million copies in circulation.[47]
Bamboo Dong of Anime News Network (ANN) offered a negative assessment of the first season (part one), criticizing its repetitive nature and inconsistent tone, which struggled to balance between mindless action and a semi-serious martial arts narrative. Dong found the technical explanations of combat techniques lacking compared to series like Naruto, despite the latter featuring fictional abilities. The review concluded by suggesting the show might only appeal to younger viewers seeking confidence-building stories, as it failed to engage older audiences.[48] However, Dong later reviewed the first season (part two) more favorably, praising its improved focus on Kenichi's martial arts progression over his initial transformation from a weakling. The fanservice, while present, was deemed appropriate, and Miu was highlighted as a strong female lead. The series was recommended for fans of Naruto, Bleach, and other Shōnen Jump titles due to its action and grounded combat.[49]
Theron Martin, also writing for ANN, likened the first season (part one) to The Karate Kid (1984) but noted its lighter tone, which helped mitigate its often absurd scenarios. While criticizing its early pacing and comedic excesses, Martin praised its exploration of martial arts fundamentals and concluded that despite its flaws, the series delivered an entertaining, if cheesy, experience.[50]
Davey C. Jones of Active Anime lauded the first season (part one) for its dynamic fights and humor, calling it a perfect blend of comedy and martial arts action.[51] In reviewing the second season (part two), Jones compared it favorably to Ranma ½, emphasizing its energetic combat and comedic appeal.[52]
C.M. Brendelson of Otaku USA described Kenichi as a typical underdog protagonist akin to Peter Parker, while Miu stood out as both highly skilled and visually striking. The series was noted for its focus on Kenichi's growth through defeat rather than a desire for supremacy, and while fanservice was prevalent, it did not overshadow the narrative. Brendelson concluded that the show, while not universally appealing, offered a lighthearted mix of action and comedy.[53]
Allen Moody of THEM Anime Reviews praised Kenichi as a relatable protagonist with strong moral convictions, along with the series' action and character dynamics. However, he criticized excessive melodrama during fight sequences.[54]
