TV series
"X" Marks Her Next Victim.
Behind a beautiful face hides a cruel nature—Baek Ah-jin, who sees through and manipulates others' hearts. After stepping on the sacrifices of many to reach the top, everything begins to change the moment she arrives there. A woman wearing a mask to escape hell and climb to the highest place. And the story of the Xs being brutally crushed by her.
Streaming, rental and purchase options
Checked Jul 22, 2026
Dear X is available to stream on Rakuten Viki in United States. Use the direct links below to open the provider.
Behind a beautiful face hides a cruel nature—Baek Ah-jin, who sees through and manipulates others' hearts. After stepping on the sacrifices of many to reach the top, everything begins to change the moment she arrives there. A woman wearing a mask to escape hell and climb to the highest place. And the story of the Xs being brutally crushed by her.
Choose an episode, then use the watch options above for the show.
Episode 1
When Sung-hee attempts to expose Ah-jin's secrets, she strikes back with the help of fellow classmates.
Guest stars Hyeon Jin, Bae Soo-bin, Lee Seo-an, Gi So-you, Kang Ian, Kim Yi-kyeong, Yoon Joo, Kwon Su-yeon
Episode 2
Ah-jin is accepted into her dream law school, but her dreams are crushed when her father returns.
Guest stars Bae Soo-bin, Lee Seo-an, Gi So-you, Kang Ian, Kim Yi-kyeong, Kim Ji-hoon, Kim Ji-young, Hong Bi-ra
Episode 3
With her dream shattered, Ah-jin begins to work at a cafe and secretly schemes to manipulate Jung-ho.
Guest stars Bae Soo-bin, Kim Ji-hoon, Baek Sun-ho, Kim Ji-young, Hong Bi-ra, Jeon Kuk-hwan, Lee Seung-jin, Kim Sang-il
Episode 4
As suspicions fall on Ah-jin with nowhere to turn, she is approached by Mi-ri, who steps in to save her.
Guest stars Kim Ji-hoon, Hyun Seo-ha, Kim Ji-young, Shin Mun-sung, Hong Bi-ra, Kim Se-yoon, Kim Yu-mi, Kim Jae-il
Episode 5
Ah-jin makes her debut as an actress and grows increasingly wary of Lena.
Guest stars Hwang In-youp, Hyun Seo-ha, Kim Ji-young, Shin Mun-sung, Hong Bi-ra, Jeon Kuk-hwan, Choi Sol-hee, Kim Il-woo
Episode 6
Determined to advance her career, Ah-jin sets her sights on top star, Heo In-gang.
Guest stars Hwang In-youp, Park Seoung-tae, Hyun Seo-ha, Kim Ji-young, Shin Mun-sung, Hong Bi-ra, Ryu Kyeong-hwan, Yoon Hyun-soo
Episode 7
Ah-jin's year-long romance with In-gang deepens, but her past is at risk of being exposed.
Guest stars Kim Yi-kyeong, Kim Ji-hoon, Hwang In-youp, Park Seoung-tae, Hyun Seo-ha, Kim Ji-young, Hong Bi-ra, Jeon Kuk-hwan
Episode 8
After his grandmother's passing, In-gang proposes, but Ah-jin ends their relationship instead.
Guest stars Kim Yi-kyeong, Kim Ji-hoon, Hwang In-youp, Park Seoung-tae, Jung Woo, Kim Ji-young, Hong Bi-ra, Ryu Kyeong-hwan
Episode 9
As Ah-jin faces public backlash for her break up with In-gang, a wealthy savior comes to her rescue.
Guest stars Kim Yi-kyeong, Kim Ji-young, Hong Bi-ra, Ryu Kyeong-hwan, Hong Jong-hyun, Son Kang-gook, Kim Il-woo, Kim Yu-mi
Episode 10
Jun-seo learns the secret of his birth and leaves Ah-jin’s side while she marries Do-hyuk.
Guest stars Kim Yi-kyeong, Hong Jong-hyun, Son Kang-gook, Kim Il-woo, Kim Yu-mi, Go Seo-hee, Park Bu-keon, Yeo Dae-hyun
Episode 11
Ah-jin discovers the unnerving truth about her husband. Desperate to break free, she turns to Jae-oh.
Guest stars Bae Soo-bin, Kim Yi-kyeong, Ryu Kyeong-hwan, Hong Jong-hyun, Son Kang-gook, Kim Yu-mi, Kim Min-song, Kim Nam-hee
Episode 12
Ah-jin’s deepest darkest secrets are revealed just as she rises to the very top.
Guest stars Kang Ian, Kim Yi-kyeong, Hong Jong-hyun, Lee Woong-jae, Son Kang-gook, Kim Yu-mi, Kim Min-song, Park Seung-wan
Episode information updated Jul 22, 2026
Kim You-jungBaek Ah-jin
Kim Young-daeYoon Joon-seo
Kim Do-hoonKim Jae-oh
Lee Yul-eumLim Le-na
Bae Soo-binBaek Seon-gyu
Lee Seo-anLim Sun-ye
Gi So-youChild Baek Ah-jin
TVINGSouth Korea
Monster UnionSouth Korea
Studio DragonSouth Korea
