How did Kami become the God of Earth?
Is there any lore covering this? All I know is that Kami was sent to Earth due to a climate disaster on Namek a very long time ago (hundreds of years? thousands?) and eventually wound up as God. But how did he go from stranded orphan to God of Earth?
I get that he has magic powers and whatnot, but nobody on Earth seems to even know about his existence. So is he self-appointed? Not even Namek has a God in the same sense, so how did he get the idea? AFAIK he's just a normal (perhaps exceptionally powerful) Namekian, not actually divine like Shin, so God is more of a title than a descriptor.
I think Popo drops a line about being friends with previous Gods of Earth but I may be misremembering. If this is true then maybe he was recruited for the job, but by who?