Somehow 18

Minho

as

Oh Kyung Hwi

Lee Yu-bi

as

Han Na Bi

Kim Bo-mi

as

Oh Yi do

Kim Hee-chan

as

Jang Seul Gi

Choi Seo Hyuk

as

Baek Jin Wook

Yoo Joon-hong

as

Ma Ki Ho

Choo Soo Bin

as

Woo Hee

Min-seo

as

Da Eun

Lee Sang-hoon

as

[Teacher]

Yoo Min-joo

Lee Ga Won

Jo Young-jin

Hong Sung Sook

Guk Ji Yong