Enraged Nami

What is she enraged about? Here's the answer.

"That voice?! Elly? Elly, is that you?!" asked the manly voice from the dark mecha.

"Fei... What're you doing? You shouldn't be here!" exclaimed a feminine voice from the pink mecha.

Hearing what the pilot of the pink mecha just said made Nami snapped as her suspicions are confirmed and her eyes shined like star-crossed. A similar reaction to how Sanji snapped after Duval yelled that it was all his fault that his life was ruined by the fact that the drawing resembles his face.

She is enraged to find out the pilot of the pink mecha is Elly, her childhood friend, and not only that but also she's taking the 'Drive' to fight Fei. Nami is enraged by this because she has a bad childhood memory of her violent behavior from the 'Drive'.

Read Pirate Meets Gebler at chapter 2 to see this part.