when it comes to one piece i would say that looking at parental figures is not the best way to inform oneself about siblingships, since there's plenty examples of having the same parental figure yet not being siblings and the other way around
i think looking at how franky and iceburg speak of each other would give way more accurate information, but for me to source that proper i would need to (re)read W7/EL
just from what i can recall, i would say yes tho. source: my hazy, unreliable memory
I don’t think either of them was ever formally adopted by Tom, but they might as well have been his sons. I think they’re only referred to as his employees though.
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when it comes to one piece i would say that looking at parental figures is not the best way to inform oneself about siblingships, since there's plenty examples of having the same parental figure yet not being siblings and the other way around
just from what i can recall, i would say yes tho. source: my hazy, unreliable memory