I'll back off so you can live better 

Choi Gina

age:26

Good Enterainment Media Grop boss in age of 16 

her father pass away six year ago 

being away from her family for six year 

married to Yoon Doo-joon went she was 20 

Yoon Doo-Joon 

Age:27

The own of Cube Entertainment 

married to Choi Gina went he was 21 

His Gayoon

Miki Xu

Age 21

Gina step sister 

her dad married gina mom three year ago