So yeah, I decided to post this because the number of characters and cameo may confuse you, readers of "ICE". This is just a list of who is who, but I will conceal some details for some characters and be vague for some other; otherwise, it would leaked the plot (haha!). So here it is!

The Triangle

Wu Yifan/ Kris Wu : Chairman of the Titan Wu Group, husband of Yeojin

Kwon Yeojin : a senior student (grade 12) in Jaesan High School, wife of Kris

Oh Sehun : a senior student and the current Student President of Jaesan High School, son of a chaebol family

The Wu's

Wu Huan : Founder of Titan Wu Group, grandfather of Kris and Lin

Han Jieun : wife of the late Wu Yi Huang, mother of Kris and Lin

Wu Lin : a junior student (grade 11) in Jaesan High School, sister of Kris

The Kwon's

Kim Yeonhee : mother of Yeojin and Jinho

Kwon Jinho : 8-years-old brother of Yeojin

Other Characters

Lee Areum : Kris' ex-girlfriend

Hong Sunhee : Yeojin's best friend since middle school 

Park Changsun : Vice Chairman of Titan Wu, friend of Wu  Yi Huang

Kim Jongin : Sunhee's cousin

Luhan : son of a chaebol family 

Kim Suho : Kris' best friend

Park Chanyeol : Kris' ex-friend (lol)

Mr. Ahn : The Wu's personal assitant and driver

Mr. Lee : Kris' personal assitant for office matters

Byun Baekhyun : a friend from Yeojin's past

Kim Jongdae : Yeojin's friend in Jaesan High School's running club