아이들은 즐겁다

Lee Kyung-hoon

Da-yi

Park Ye-chan

Min-ho

홍정민

Yoo-jin

박시완

Jae-kyeong

Ok Ye-rin

Shi-ah

イ・サンヒ

Da-yi's mother

ユン・ギョンホ

Da-yi's father

コン・ミンジョン

Teacher