If YSM have kingkas of course there will be queenkas the girl who happens to capture the heart of their bestfriends of they dont know that and now dating other people lets meet them shall we 

Meet JENNIE KIM 

-queenka of YSM

-have a secret with her friends 

-In a relationship with kai

-kim jisoo 's bestfriend 

Meet PARK CHAEYOUNG aka ROSÈ

-queenka of YSM 

-have a secret with her other friends 

-in a relationship with kyungsoo 

 -Lisa manoban's bestfriend 

Meet IRENE BAE 

- queenka of ysm 

- have a secret with her other friends 

-in relationship with taecyeon

-kang seulgi's bestfriend

Meet TIFFANY HWANG 

-queen of queenkas and the unnie of the group 

-have a secret with her other friends 

-in relationship with nickhun

-kim taeyeon's bestfriend 

What is the secret this four girls holding .. do their boyfriends know. Let see .