Lee Sang-hyeok

21 years old Insanely handsome Police officer Caring, loves dad jokes Childhood friend of Hana for 21 years

Myung Jae-hyun

21 years old Insanely handsome Police officer Caring, sly and playful Childhood friend of Hana for 21 years

Han Dong-min

21 years old Insanely handsome Police officer Caring, very much a 'T' (logical/blunt) Childhood friend of Hana for 21 years

Kim Dong-hyun

21 years old Insanely handsome Police officer Caring, pure-hearted, loves fish Childhood friend of Hana for 21 years

Kim Woon-hak

21 years old Insanely handsome Police officer Caring, shows aegyo only to Hana Hana's boyfriend Childhood friend for 21 years