Male lead: Kang sunghoon (26)
Female lead: Lee suri (25)
FL family:
younger sister: lily (24)
Dad: Mr Lee / lee jaehyun
Mom: Mrs Lee / Lee yeonha
Best friend: min hari (25)
song soojin (25)
ML family
Father: Mr Kang/Kang minhyuk
Mother: Mrs Kang/ Kang jisoo (dead)
Older brother: Kang minhoo (27)