One day, three siblings receive a postcard from their mother who left them a long time ago. But all it says is "I miss you." Three siblings are disconcerted by the sudden contact, but eventually, they go on a trip to meet their mother.
Jang Hye-jin
Tae In-ho
Lee Ga-sub
Kim Jin-yeong
Ko In-beom
Cha Mi-kyeong
Lee Hyo-je
Lee Sang-hee
Jo Eun-joo
Lee Jong-won
Baek Ji-won
Kang Mal-geum
Park Ok-chul
Park Kang-seop
Choi Ji-won