The first teaser for the new psychological thriller Dear X has arrived, showing a dramatic change in actor Kim You Jung. The video introduces her as Baek Ah Jin, a top actress with a dark secret side. The teaser also shows the two men pulled into her world, Kim Young Dae and Kim Do Hoon, setting up a story of dangerous relationships and ambition.
Fans got their first look at the intense drama during KCON LA 2025, and the preview has quickly become a major topic of discussion online. The series is set to premiere on November 6, 2025, on the Korean streaming platform TVING.
The Story Behind Dear X
Dear X is based on a popular webtoon of the same name. The story centers on Baek Ah Jin, who suffered domestic violence as a child. To survive her difficult past, she learned to hide her true emotions and manipulate people by understanding their deepest desires. On the surface, she is a generous and kind top actress, but she can reveal a devilish side when someone gets in her way.
The series is directed by Lee Eung Bok, who is known for hit dramas like Guardian: The Lonely and Great God and Mr. Sunshine. He co-directs with Park So Hyun, while the script is written by Choi Ja Won. The show is produced for TVING and will have 12 episodes.
A Closer Look at the Teaser
The newly released teaser shows Baek Ah Jin’s life swinging between great success and deep despair. One moment she is on the red carpet in a glamorous gown, with camera flashes surrounding her. The next, the video hints at a hidden past and her real self. We see a younger Ah Jin with an innocent smile, but her eyes show emptiness and weariness.
Rumors about her true nature are heard: “She acts like a model student in front of everyone, but behind their backs, she shamelessly extorts money from others” and “She’s a devil wearing a human mask.” The teaser takes a darker turn when Baek Ah Jin asks with a twisted grin, “So, do you want to kill me?” Her expression is both venomous and terrifying.
The focus then shifts to the two male leads. Yoon Joon Seo, played by Kim Young Dae, is the man who has been by Ah Jin’s side his whole life and is willing to do anything to protect her. In a desperate act, he is shown screaming “Die!” while raising a brick. Kim Jae Oh, played by Kim Do Hoon, is another figure from her past who found a reason to live through her. The teaser shows him in a prison uniform, suggesting a tragic path. The video ends with the haunting line, “May your ruin be my salvation,” highlighting the dangerous bond between the three characters.
Meet the Main Cast
The drama brings together a strong cast of popular actors.
Kim You Jung takes on the lead role of Baek Ah Jin. This role is a big change for the actor, moving from romantic comedies to a more complex, dark character. She plays a two-faced woman who can read and control people to get what she wants.
Kim Young Dae plays Yoon Joon Seo, a man who believes he can save Baek Ah Jin. He is her only refuge but also her most fatal weakness. His character is willing to destroy everything he stands for her sake.
Kim Do Hoon is Kim Jae Oh, a man whose life is given purpose by Baek Ah Jin. Having also suffered abuse in his childhood, he feels a connection to her and willingly becomes her shadow, showing a dangerous level of loyalty.
Completing the main cast is Lee Yul Eum as Im Re Na, a top actress and former idol who has feelings for Yoon Joon Seo, adding more emotional tension to the story. The show also features special appearances, including Hwang In Youp as an idol-turned-actor with a secret.
Fan Reactions to the Teaser
The release of the teaser has generated significant excitement among fans. On social media, many have shared that they got “goosebumps” from the intense preview. One fan commented, “Omgeee that was freaking intense!! goosebumps everywhere!! Kim You Jung the woman you are.”
Another user expressed high expectations for Kim You Jung’s performance, writing, “I fear that Baek Ajin will snatch the crown from Do Do Hee as the most fashionable and best‑dressed female lead in the K‑drama industry.” The general feeling is that Kim You Jung is perfectly suited for this complex role, with one person noting, “Kim Yoo-jung’s acting is next-level — she slips into every role so perfectly it gives me chills.”
Key Details and Release Schedule
Dear X was first shown at the 30th Busan International Film Festival in the ‘On Screen’ section on September 18, 2025, where the first two episodes was screened. The full series will then be available for streaming on TVING starting November 6, 2025. Information about which global streaming service will carry the show outside of Korea is expected to be announced later.
The series is one of the most awaited Korean dramas of late 2025, combining a famous director, a popular original webtoon, and a talented cast led by Kim You Jung in a powerful new role.
Also Read: Kim Yoo Jung Shares Why She Hesitated Before Taking Her Role in New Drama Dear X
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