Another member of JKT48 that I mostly put my eyes on is Rona aka Ayen. She is currently in Team K3, along with my oshimen, Beby.
I still remember the first day I recognize Ayen. It was on TV where JKT48 aired their concert. She was wearing K3 uniform singing 1! 2! 3! 4! Yoroshiku, standing somewhat near the center. That time I was worried, "She is so bubbly. More like a popcorn or rubber ball. Doesn't she get tired of her movements?" But she looked so refreshing after all those bubbly movements, and it left me feel glad.