Let's see

Developer: Github - Abhijeet Ray

He Was Cool backdrop

He Was Cool poster

He Was Cool

Cast ~ Crew

Cast ~

Song Seung-heon

Song Seung-heon

Ji Eun-sung

Jeong Da-bin

Jeong Da-bin

Han Ye-won

Lee Ki-woo

Lee Ki-woo

Kim Han-sung

Lee Jin-seong

Han Seung-pyo

Jeong Jun-ha

Jeong Jun-ha

Homeroom Teacher (uncredited)

Park Yoon-Bae

Harassing Man (uncredited)

Park No-shik

Park No-shik

Rabbit Seller

Kim Bo-yeon

Kim Bo-yeon

Ye-won's Mom (uncredited)

Kim Kap-soo

Kim Kap-soo

Ye-won's Dad (uncredited)

Prod. ~ Crew

Lee Dong-yoon

Production (Line Producer)

Lee Hwan-kyung

Directing (Director)

Lee Hwan-kyung

Writing (Writer)

Gwiyeoni

Writing (Novel)

Kim Yeong-seok

Writing (Adaptation)

Ok Su-gyeong

Costume & Make-Up (Costume Design)