Everyone was shocked to see Hanzo kneeling before Charlie so respectfully.
Naturally, neither Yoshitaka nor Kokomi knew who Hanzo was, as while the Iga ninjas and Hanzo were famous, no one actually knew what they looked like.
After all, ninjas were specialized martial artists, but ambush tactics were their forte. The most important skill they trained was to do their best to stay unseen, concealing tools in normal clothing to either hurt or hide. Never exposing their true identity was their way