I.O.I was an eleven member girl group that made their debut under YMC Entertainment and CJ E&M on the 4th May, 2016.
Last Update: 28th April, 2020
Special Update: 4th May, 2021
This book is no longer being updated updated.
I.O.I was an eleven member girl group that made their debut under YMC Entertainment and CJ E&M on the 4th May, 2016.
Last Update: 28th April, 2020
Special Update: 4th May, 2021
This book is no longer being updated updated.