Impel Down Arc
100

What is an arc in an anime story?

Arcs:

It is an arc (e.g. kind of like a tv season one) but it has a longer trajectory (maybe 136). 

200

In impel-down arc, who are they trying to save?

Fire-fist ace, Luffy's brother. Fleet admiral of the white bearded pirates. Luffy is the main character of the whole story. 

300

Who is the person who gave Luffy the wax suit (AKA boxing Luffy)?

Mister Three--former agent of the Broke orks

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