Hyung-wook (played by Yoo Hai-jin) is a protagonist in Luck-Key.
A notorious assassin who suffers amnesia after a slip-and-fall accident and assumes the identity of an aspiring actor. He works at a restaurant, excels in action scenes for a TV show, and eventually reveals he fakes clients' deaths to give victims new lives. He reconciles with his past and finds love. Yoon Jae-sung (played by Lee Joon) is a protagonist in Luck-Key.
A down-on-his-luck aspiring actor who accidentally switches identities with an assassin. He enjoys the assassin's wealth, discovers a secret room, and falls in love with a neighbor he protects. He ultimately joins a plan to fake his death and starts a new life as an actor. Ri-na (played by Jo Yoon-hee) appears in Luck-Key.
A paramedic who helps the amnesiac assassin pay his hospital bills and secures him a job at her mother's restaurant. She supports his acting career, develops romantic feelings for him, and witnesses his final plan to fake their deaths before accepting his true confession. Song Eun-joo (played by Lim Ji-yeon) appears in Luck-Key.
A woman living in the same building who is initially believed to be a protected witness. She becomes the object of Jae-sung's affection, learns the truth about the fake assassinations, and joins the main characters in devising a plan to start a clean new life. Ri-na's Mother (played by Seong Byeong-suk) appears in Luck-Key.
Luck-Key (2016) character relationship network mapped with AI analysis. Explore the connections, alliances, and conflicts between characters.
Characters
Hyung-wook
(played by Yoo Hai-jin) — protagonist
A notorious assassin who suffers amnesia after a slip-and-fall accident and assumes the identity of an aspiring actor. He works at a restaurant, excels in action scenes for a TV show, and eventually r...
Yoon Jae-sung
(played by Lee Joon) — protagonist
A down-on-his-luck aspiring actor who accidentally switches identities with an assassin. He enjoys the assassin's wealth, discovers a secret room, and falls in love with a neighbor he protects. He ult...
Ri-na
(played by Jo Yoon-hee) — supporting
A paramedic who helps the amnesiac assassin pay his hospital bills and secures him a job at her mother's restaurant. She supports his acting career, develops romantic feelings for him, and witnesses h...
Song Eun-joo
(played by Lim Ji-yeon) — supporting
A woman living in the same building who is initially believed to be a protected witness. She becomes the object of Jae-sung's affection, learns the truth about the fake assassinations, and joins the m...
Ri-na's Mother
(played by Seong Byeong-suk) — supporting
Key Relationships
Ri-na's Mother → Ri-na
(mother)
Hyung-wook → Song Eun-joo
(Conflict Target)
Yoon Jae-sung → Song Eun-joo
(Romantic Secret Admirer)
