Seigyosei T Saibou

Known as the immune system's indispensable brake mechanism, this character dedicates herself to curbing excessive immune responses and shielding the body's own healthy tissues from friendly fire. With an unshakeable calm and razor-sharp professionalism, she supports Helper T Cells like a seasoned executive aide. Even when faced with allies on the frontline, she executes suppression orders without hesitation—because preserving the body's immunological equilibrium is the absolute principle that defines her very existence.