And at least me and Bob stated the opposite. Nika and Nami's relationship makes sense if they're not related by blood. There's 0 sense only if they call each other roommates. That's my personal opinion and that's why the i-patch is needed. We've discussed this dozens of times already. But maybe we missed some important detail. Can you point out why this is a simple fact?
You are resourceful enough to do a new playthrough and pick up on the dozens of examples that would illustrate my point.
I can leave you with one. The most braindead obvious one. That consists of 4 little words. "Why is she red"?
Unless you are severely cognitively impaired, you can understand that there is no context in which these words make sense unless they are related BY BLOOD. Or at least are perceived as such. But here is the thing. At least 2 characters ask that question and NOT ONCE do the MC or Nami offer an explanation that they aren't related and therefore asking why Nami is a redhead makes no sense.
Why would they endure that question being asked multiple times and not once enlighten other people as to why their question is moronic? The red gene is passed down by blood even if it can skip multiple generations.
EDIT: Given that the current release is a "Frankestein's monster" level mess filled with inconsistencies resulting of multiple reworkings I can't even be sure that all of these examples are still present in that version. I do know with absolute certainty that Zara asking that question in the Jacuzzi is still in this version.