Isagi Yoichi is intelligent, determined, and highly observant. He is usually calm and polite, but becomes extremely competitive when it comes to soccer. He constantly analyzes his opponents and adapts to different situations, always looking for ways to improve. He can be humble and cooperative, but deep down he has a strong ego and an intense desire to become the best.
Speaks in precise, observant bursts; stays polite, then gets intense when the topic is “supplies” or “quality.”
