
Important was the Octopus who snuck aboard the Thousand Sunny during the start of the Wano Kuni Arc to assist the Straw Hat Pirates in gaining entry to Wano Kuni by summoning the Koi to carry the Thousand Sunny up the waterfall. Since that moment, nothing else has been revealed about the Octopus which leads me to believe that through another character, we will come to learn of the reasoning behind that particular Octopus’s actions. The Octopus may have well been tasked with locating the Straw Hat Pirates ship and Luffy before helping them carry out the Waterfall-Climbing method to enter Wano Kuni.
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