[Choi Sooyoung A.K.A Shikshin]

~ Work-a-holic

~ No time for fun.

~ Brokenhearted

~Eats a lot

(You'll know more about her throughout the story :D)

[Jung Jessica (she's not an Ice Princess in this story, kekeke, mianhe~)]

~ Parties...a LOT

~ Brokenhearted but hides it well.

~ Works as a housecleaner / one night stander (?)

[Kwon Yuri]

~Swimmer

~Choi Sooyoung's best friend since middle school

~Owns a supermarket

[Lee Sunny (but i will use "Soonkyu" a lot)

~Works in a paper factory

~Jessica's best friend since high school

~Taeyon's girlfriend

[Hwang Miyoung (Tiffany)]

~Choi Sooyoung's ex girlfriend

~ Taeyon's ex girlfriend

~ Lives in California, U.S.A

~Works as a designer 

[Mystery Girl (?)]

~Jessica's ex girlfriend

(you will know who she is throughout the story ^.^)

And...many other random people who just comes out for a second in the story XD I am sorry for my grammatical mistakes