The ABCs of Our Relationships

Oh Ha-ni

Han-na

Eun Hae-seong

Min-gyu

Lee Seo-yoon

Ju-hee

Jang Jun-whee

Sang-gyu

Kang Ae-sim

Park Ji-soo

Hong Sang-pyo

Mr. Hwang

Cho Yun-hee

Han-na's mother