Their youngest manager, Jaechan created a youtube channel 코튼캔디 막내매니저 일기

 https://www.youtube.com/channel/UC3kgosidfK3i_47Q2otmmGw

They provide english subtitle too. 

Content: 
Idol manager vlog: https://youtu.be/i1lGlF305lk

Whats in my bag: https://youtu.be/8S8mYKMiFd4

QnA: https://youtu.be/PtvuqRHqgT4

Practice room vlog: https://youtu.be/1zzfUFbgEmI

Whats in my car: https://youtu.be/rXqvcoqFtkk

Practicing for fanmeet: https://youtu.be/KAE1B76e9i0

Comeback vlog: https://youtu.be/WlW0yNiHYZA

Mukbang vlog: https://youtu.be/Yjhk9xUIgko