Kim Jayoung (Nickname: J)
Role: Main female lead; becomes a mafia member for revenge
Personality: Kindhearted deep inside but comes off as rude and serious. She's funny and more open with her best friend and mother.
Park Sunghoon
Role: Main male lead; an adopted child of his uncle and a popular singer
Personality: Kindhearted, a bit shy, and funny, but struggles with his emotions inside.
Supporting Characters
Kim Josuk
Role: Jayoung's father; a brave secret agent who was murdered
Personality: Loyal and a good person.
Park Minjo
Role: Sunghoon's uncle; adopted Sunghoon to protect his own biological son, as he was a mafia member in the past
Personality: Heartless and mysterious, hiding many secrets.
Personality: Kindhearted, a bit shy, and funny, but struggles with his emotions inside.
Supporting Characters
Kim Josuk
Role: Jayoung's father; a brave secret agent who was murdered
Personality: Loyal and a good person.
Park Minjo
Role: Sunghoon's uncle; adopted Sunghoon to protect his own biological son, as he was a mafia member in the past
Personality: Heartless and mysterious, hiding many secrets.
Personality: Kindhearted, a bit shy, and funny, but struggles with his emotions inside.
Supporting Characters
Kim Josuk
Role: Jayoung's father; a brave secret agent who was murdered
Personality: Loyal and a good person.
Park Minjo
Role: Sunghoon's uncle; adopted Sunghoon to protect his own biological son, as he was a mafia member in the past
Personality: Heartless and mysterious, hiding many secrets.