Martial arts manga and anime have been in decline for the past 40 years, ever since Dragon Ball creator Akira Toriyama realized that the more energy beams and other supernatural feats one added to the template, the more people seemed to like it. While there have been “traditional” martial arts series that reached moderate levels of success (such as Holyland by Kouji Mori, the artist who took over Berserk after Kentaro Miura’s passing, or All Rou…