S1 • E1
After receiving a call from Hong Hee-joo's kidnapper, Paik Sa-eon attempts to learn more about him - only to find it's hard to escape his surveillance.
S1 • E2
Sa-eon works quickly to track down the caller, forcing Hee-joo to stay hypervigilant. Despite her fears, she continues to play along with the ruse.
S1 • E3
After Sa-eon experiences an attack, he grows wary of Hee-joo's relationship with her friend. Meanwhile, an ominous figure makes his presence known.
S1 • E4
After receiving the ominous call, Hee-joo abandons her clandestine plan. She then undergoes a tough interview with Sa-eon - sharing an intimate moment.
S1 • E5
Sa-eon grapples with feelings of betrayal after learning the truth about Hee-joo. However, when she receives good news, they begin to grow fonder.
S1 • E6
Hee-joo confronts a figure from her past who wishes to reveal what she knows. She then embarks on a retreat with Sa-eon - who becomes possessive of her.
S1 • E7
Sa-eon and Hee-joo's relationship shifts after her harrowing rescue. Determined to catch the kidnapper, Sa-eon goes full force - with the help of 406.
S1 • E8
As Hee-joo and Sa-eon grow closer, the threat from the kidnapper intensifies. Sa-eon discovers an ominous and shocking clue from a past figure.
S1 • E9
Hee-joo worries about Sa-eon after learning the truth about him. She later appears on the stage of her dreams, side by side with her love.
S1 • E10
While attempting to rescue Hee-joo, Sa-eon discovers another surprising conspirator - whom he later tries to persuade to help locate the kidnapper.
S1 • E11
After Hee-joo's bold move, her fate and that of her kidnapper remain uncertain. But Sa-eon refuses to give up - leaving no stone unturned to find her.
S1 • E12
Sa-eon abandons everything he's worked for, leaving Hee-joo completely alone. But after a clue arrives, she embarks on a journey to reunite with him.
Baek Sa-eon
Hong Hee-joo
Ji Sang-woo
Na Yoo-ri
Kang Yeong-woo
Hong Il-kyeong
Kim Yeon-hee
Baek Jang-ho
Jeong Sang-hoon
Hong In-ah