Taizen Shiba

Serving as a pivotal mentor to Yuuichi Katagiri, this influential figure acted as his adoptive father and shaped his worldview. By instilling a deep understanding of the true worth and power of currency, he fundamentally influenced Yuuichi's development. His guidance provided the foundational lessons on financial survival and greed that would later define the protagonist's complex approach to life and his intense struggles within the high-stakes games.