rami is the korean center for now, rora is the korean visual/mc (in some content she begins talking first and one who directs the conversation), chiquita is the foreign center, ruka is the de-facto leader especially in leading the choreo, pharita is the foreign visual/english speaker, and asa is the cool girl/main rapper/songwriter
MC ? but Rora seems to be too shy for that role of MC I will take Asa or Rami