Kei Tachikawa

Kei Tachikawa leads the A-class Tachikawa Squad as its top-ranked attacker. He is Jin’s primary rival and a close friend, though his arrogance and shared mindset with Jin frequently irritate Miwa. While he maintains a friendly demeanor outside of combat, his technical skill is unmatched; most consider him the most skilled fighter within Border. However, his strategic intellect and academic performance are mediocre, showing that his true talent lies on the battlefield rather than in academics or leadership.