supporting roles :
Zhong Chenle & Wang Yireon
Son Eric & Go Yujin
Jung Jaehyun & Myoui Mina
Yoo (Jang) Wonyoung
the parents
Yoo Yeonseok - Lee Sunny
Karina's father - stepmother
Lee Donghae - Im Yoona - Jung Yunho
Jeno's father - mother - Jaehyun's father
Bae Irene - Oh Sehun
Siyeon's mother - stepfather
honorable guest
Ningning - Winter - Giselle
Na Jaemin