In Hiroki Endo's series, two long-lost friends, Meguru Takayanagi and Takashi Yamabuki, reunite at an amateur shooto mixed martial arts competition. Meguru engages in MMA casually, while Takashi is driven by a more determined ambition. Despite their distinct motivations for entering the ring, both friends grow in strength with every bout. All Rounder Meguru stands out for its authentic portrayal of martial arts, capturing the dynamic and thrilling realm of modern MMA with unparalleled realism.