2- When the SHs first got to Skypia, everyone was complaining how hard it was to breath except Nami who was fine.2. well she didn't fight with skypiean but luffy,zoro & sanji did.As when you fight you need more oxygen at one time.
3. she is good technically when SH gets merry & sunny she said leave technical stuff to me.
4.She was send their for learning about New world sea & also enhance her technical skill. weatheria is the most appropriate place for her in this sense not that she is a skypiean.And every SH was send to a specific place with reason usopp for improving physically & improving his shooting skill,zoro to meet mihawk,robin to meet dragon,chopper to learn medicine & get stronger,brook for getting his new abilities,frank to become cyborg by utilizing vegapunk's technology,sanji for recipies for energy enhancement.
Well I didn't know much about enel so no comment on that
3-It is still strange that Nami learned how to use Skypiean tech with no problem when it takes actual sky islanders some practice.
4-I know she was sent there to improve her abilities but I still find it suspicious that she was sent to a sky island
5- As I said about Enel, he doesn't have wings either so not having wings doesn't mean you don't have a sky island lineage.
Also, Nami loves mikans which are those oranges. If you translate Mi and Kan separately you get 'Seed of Heaven."
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