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These are the various kaioshin
And these are the kaio
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And since they are the same race just one has a higher rank
It makes no sense
We even see zamasu, a former north kaio become a kaioshin
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And weird thing being too
Even the apprentice kaioshin like kibito still fit into the kaioshin group
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then you got the grand kaio who does not look like any of the other kaio species
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So why do the kaioshin look so different to the kaio