Arin

Arin described her personality as calm and talks little when she's outside. She likes being alone and not talking about her worries or feelings. The 'maknae' image of being cute and doing a lot of aegyo is very different from who she actually is.

Arin and Jiho walk to school (SOPA) together and when Jiho graduated, Arin got lost on her first day going to school without her.

For Arin's 23rd birthday (Korean age) she covered IU's Twenty-three.

She joined WM Entertainment as a trainee in 2013.

She has a younger brother named Choi Seokjun.