I found Niziu in the Artist thread and got me thinking about BP's documentary as well.
What is Kpop? What makes a group Kpop?
Is it language? The biggest song of 2020 is completely in english - Dynamite - does that make it not kpop?
We have groups releasing songs in japanese, english, chinese and even spanish does that make them not kpop?
Is it the members? we have idols from US, Indonesia, Japan, Thailand, Senegal (Fatou) - they are still kpop idols right?
What about Niziu? they are all japanese but managed like a kpop group - are they kpop? a majority of kpop fans think they are jpop and vice versa japanese fans consider them kpop - what's the difference?
What about someone like Tiffany from SNSD her EP (Lips on Lips) post SNSD is completely in English and produced completely in LA? how to we compare that to her EP whilst still a member of SNSD (I Just Wanna Dance) which is mostly in Korean.
Is it the record label? Everglow is signed to Yuehua and they are a predominantly Chinese company - Everglow is definitely kpop right?
My Thoughts: Jennie said in the documentary that what makes kpop kpop is the training they received as a trainee. I think that epitomizes what it means to be a kpop idol. Whether you debut in a few months or after 10 years the training system within Korea is what makes you a kpop idol - the stress of not knowing whether you're going to debut or with whom, the constant sometimes 14 hours days singing, dancing etc molds you into a kpop idol.
And that's why groups like Kaachi or Niziu don't come under the umbrella of being a kpop idol they haven't "suffered" enough. They haven't gone through the system of rigorous intense training and competition.