"The love story between a top actress and an airline director who each suffers an unusual phenomenon. He suffers from prosopagnosia, while every month she transforms into someone else for a week."
Seo Hyun-jin
as Han Se-kye
Lee Min-ki
as Seo Do-jae
Lee Da-hee
as Kang Sa-ra
Ahn Jae-hyun
as Ryu Eun-ho
Lee Tae-ri
as Jung Joo-hwan
Moon Ji-in
as Yoo Woo-mi
Na Young-hee
as Im Jung-yeon
Lee Moon-Su
as CEO Im
Kang Nam-gil
as Kang Dae-sik
Kim Hee-jung
as Han Sook-hee
Ryu Hwa-young
as Chae Yoo-ri
Kim Ye-ryeong
as Eun-ho's Mother
Lee Cheol-min
as Director Kim
Lee Han-wi
as Eun-ho's Father
Kim Yeong-hoon
as Choi Ki-ho
Oh Se-young
as Joo Ga-young
Jang Kyung-ik
Executive Producer
Song Hyun-wook
Director
Kim Woo-taek
Lee Hae-ri
Theme Song Performance
K.Will
WENDY
Kang Min-kyung
Syd Lim
Im Meari
Writer
Ham Yeong-hoon
Producer