Both groups have two members who were in a successful kpop group before, and I disagree with not calling Yunjin or Kazuha rookies because they have some experience performing vastly different things. Tons of idols do dance academies or music schools as trainees. Both of them were lacking in kpop style dancing when they joined LSF and really levelled up btw. The only thing I'll give you is Yunjin being on Produce. Kazuha wasn't even a trainee, she just joined right away, that's as rookie as it gets
