Who Am I? S01 E02 Episode 2

'Chuu' is as cute and lovely as Girl of the Month 'Chuu', who has entered the entertainment world with her unique infinite positive high-energy. In her daily life, is she full of determination and old-fashioned power? Although she is a bit clumsy, she is a responsible older sister who cares about the members younger than her. And what is the meaning of the tears that ‘Chuu’ sheds?