You Don't Know Anything

Shin Ye-eun

Do Ha-na

Lee Na-eun

Kim Ha-na

Kim Dong-hee

Ha-min

Choi Bo-min

Ryu Ju-ha

Shin Seung-ho

Nam Si-woo

Suhyeon

Yeo Bo-ram

Ryu Ui-hyun

Cha Gi-hyeon

Kang Min-ah

Cha Ah-hyeon

Ahn Jung-hun

Nam Ji-woo

Jo Young-in

Kim Min-ji

Myung Hyung-seo

[Min Ji's friend] (Ep. 2) (Guest Role)