Reo is the heir of the Mikage Corporation. Prior to entering Blue Lock, he was a student at an elite high school, where he met his first long-term friend, Seishiro Nagi, and he started playing soccer shortly after with him due to Nagi's amazing skills and Reo's craving to go further in football. Reo is a tall young man with a lean and strong build. He has chin-length purple hair, usually tied in a high bun, letting two strands of hair framing his face. He also has bright purple eyes.