I had a random thought.
Has Oda ever portrayed a couple? A pair of people dating/married/whatever?
I'm wracking my brain and can't think of one. They all have (at most) one parent, except for Usopp whose father left him and his mother, and Ace and the two of them didn't really stick together. Even Vivi was missing a mother

Monster Hunter: pissing me off since 2010.







