단단한 놈

Kim Min-seong

Jo Ja-ryong

Kim Hye-eun

Han So-yun

Lee Soon-jae

So Yun's grandfather

Seo In-seok

Kang Dong-Soo

Bang Eun-hee

Jo Mi-ryeong

Jeong Seong-hwan

Oh Tae-Joo

Yang Taek-jo

Jo Woo-Sam

Hwang In-sung

Ha Joon-Yeop

Yoo Dong-yoon

Writer