Sunny

Yoo Ho-jeong

Na-mi

Shim Eun-kyung

Young Na-mi

Jin Hee-kyung

Choon-hwa

Kang So-ra

Young Choon-hwa

Koh Soo-hee

Jang-mi

Kim Min-young

Young Jang-mi

Hong Jin-hee

Jin-hee

Park Jin-joo

Young Jin-hee

Lee Yeon-kyung

Geum-ok

Nam Bo-ra

Young Geum-ok

Kim Sun-kyung

Bok-hee

Kim Bo-mi

Young Bok-hee

Min Hyo-rin

Young Su-ji

Kim Si-hoo

Young Joon-ho / Joon-ho's Son

Park Young-seo

Young Jong-ki

Chun Woo-hee

Sang-mi

Kim Hye-ok

Na-mi's Mother

Jeong Seok-yong

Jong-ki

Ha Seung-lee

Ye-bin

Kim Yeong-ok

Na-mi's Grandmother

Baek Jong-hak

Nami's Husband

Jung Won-joong

Na-mi's Father

Kim Won-hae

Teacher

Kim Sae-byuk

Class Monitor