Friendship evolves into something more between two high school students: a playful chaebol heir and the diligent bodyguard who's always by his side.
한기찬
as Han Tae-joo
장의수
as Kang-gook
Choi Yeon-cheong
as Choi Hye-mi
Chun Jae-young
as Kim Pil-hyun
Cheon Seung-ho
as Pil-hyun's Friend
정서인
as Hye-mi's Mother