I'm doubting whether Shine can answer anything I can't after I was watched and read everything of One Piece during the later half of 2011, though yeah, maybe he hasn't seen the topic.
I really thought Jinbe would join too, but I think the main problem is that his bounty is higher than even Luffy. If Luffy goes up against Big Mam and her crew, their bounties are sure to raise after beating a Yonko, and then I think Jinbe will join. I'm not sure what his so called business is, but I guess it could hae something to do with the protecter of Fishman Island. Maybe we'll know better when Jinbe finds out what Luffy just did.
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Easiest bracket ever, yet we all failed!
Well except SuperNiceDog, of course!