I Don't Know How I Used to Be...

Chun Woo-hee

Im Jin-ju

Jeon Yeo-been

Lee Eun-jeong

Han Ji-eun

Hwang Han-ju

Ahn Jae-hong

Son Beom-su

Gong Myoung

Choo Jae-hoon

Yun Ji-on

Lee Hyo-bong

Lee You-jin

Kim Hwan-dong

Lee Ju-bin

Lee So-min

Baek Ji-won

Jeong Hye-jeong

Son Suk-ku

Kim Sang-su

Han Jun-woo

Hong-dae

Kim Young-ah

Lee So-jin

Kim Myeong-jun

Lee Min-jun

Ryu Abel

Kim Ah-rang

Seo Sang-won

Jin-ju's father

Bae Ho-geun

CEO Hwang

Kim Joo-ah

Spa customer

Kwak Na-yeon

Spa customer

Lee Dal

Yoo Kyung-tae