Red Blue is a shounen action manga written and illustrated by Namikiri Atsushi that follows Aoba, a young fighter who has long walked in the shadows, as he channels his deepest convictions into the high-stakes world of mixed martial arts (MMA).

What sets Red Blue apart is its rare blend of hard-hitting martial arts choreography, heartfelt school life drama, and sharp comedy that keeps the tone from ever feeling too heavy. Namikiri Atsushi crafts each bout as both a physical contest and an emotional reckoning — making this one of the most compelling sports manga series for fans who want genuine character stakes alongside every submission hold and knockout punch.

With 190 chapters available and a devoted readership, Red Blue delivers a consistently satisfying reading experience for fans of action, martial arts, and underdog sports stories. Every chapter is available to read free online in high quality, making it easy to binge from Aoba's first step onto the mat all the way to the latest release.