>>11052000i don't know about a clear hierarchy (unless you count member popularity as hierarchy), but i think i definitely get the feeling it might be a cliquey group. but
i have several problems with your assessment.
first of all you put chuu as a straggler which i can't really imagine. chuu is probably second or third most popular and she's always around lippie or yves.
olivia is pretty anti-social and while i like her, you put her in the 'in' crowd? based on what?
heejin seems to be the queen of everything, but whom is she actually close to, from the members? if we're doing your analysis based on interactions, she seems to be farily distant from them.
another thing, you put yeojin, vivi and hyunjin in the same tier, but we have that one example of hyunjin not remembering yves' name, which is definitely not something an outsider to a popular clique would do. of course she just might be too autistic to care about groups. and everybody seems to like yeojin. about vivi idk.
to clarify, i think it's highly likely there are multiple friend groups in loona (unavoidable in a 12 member group), but i think you're wrong in the way you assign members to these cliques and you're making them seem more adversarial than they really are. chuu and kim lip might love to hang out with each other but they also probably like yves and jinsoul
in any ranking, vivi would be last though.