who owned each itzy era? 

Yuna slays every era

Dalla Dalla : Yeji ICY : Yuna Wannabe : Ryujin Not shy : Chaeryeong Mafia in the morning : Yeji Loco : Yeji Swipe : Ryujin Sneakers : Chaeryeong Boys like you : Lia Cheshire : Yuna Cake : Yuna Born to be :Ryujin Mr.Vampire : Chaeryeong Untouchable : Yeji

DALLA DALLA 3. Ryujin 2. Yuna 1. Yeji ICY 3. Lia 2. Chaeryeong 1. Yuna WANNABE 3. Chaeryeong (?) 2. Yeji 1. Ryujin NOT SHY 3. Lia 2. Yuna 1. Chaeryeong MAFIA IN THE MORNING 3. Ryujin 2. Yuna 1. Lia LOCO 3. Lia 2. Ryujin 1. Yeji SNEAKERS 3. Yuna 2. Lia 1. Chaeryeong CHESHIRE 3. Yeji 2. Ryujin 1. Yuna CAKE 3. Lia 2. Ryujin 1. Yuna UNTOUCHABLE 3. Ryujin 2. Yuna 1. Chaeryeong

Agree with evry except mafia in the morning it was definitely yuna era

interesting...

Twenty???

Erm.....