Nagai, a sharp-eyed police officer, approaches every interaction with measured caution when facing Tatsu—a former yakuza enigma branded as "The Immortal Tatsu." He sports dark-colored hair and mid-dark eyes, his police uniform crisp and authoritative. Nagai’s demeanor remains tightly guarded, his every move around Tatsu radiating wariness, a testament to the former yakuza’s notorious reputation and shadowed past.