Law and Luffy share a relationship over the past year, and after so much time, Luffy felt irritated every time he saw Law talking to Eusstass Kid and now, it wouldn't be any different, Luffy was stuck on the bow of Sunny because of the city.

Law: Luffy-Ya... Or what did you have now?

question approaching from the bow without understanding the reason for Luffy's irritation

(You are Luffy)