C23 I the Army Fruit Esper?
Luffy knew Ace very well.
In the original plot of Pirate King, he had said: If Ace knew that I went to save him, he would definitely be angry.
In fact, that was indeed the case.
Ace, who was saved, was in a state of turmoil because this was his risk.
But at the same time, he was very happy. He wasn't angry with Luffy, he was just sulking.
After all, in his heart