Dear Hyeri - Season 1

Eun-ho and Hyun-oh, once a couple, now clash at the news station over an evening show that Eun-ho refuses to accept. Hyun-oh proposes to take the job to alleviate the situation, but they end up working together. While she realises how much she despises him for not being able to have him, Ji-on makes his move on her, and the Hye-ri inside her wakes up.

Hyun-oh meets Eun-ho, but she doesn't recognise him, saying she's not Eun-ho. Hye-ri and Joo-yeon become closer and Joo-yeon takes her into his house. Meanwhile, Eun-ho joins Mi-yeon and her crew to cover a serious social issue. While secretly filming footage alone, Eun-ho gets in danger and struggles to survive.

Hyun-oh saves Eun-ho but doesn't get the thanks he should and only gets another stern warning to stay away from her. Jeon Jae-yong returns to the station and stirs things up after seeing Eun-ho working in Media N Seoul Parkade. Meanwhile, Hye-ri and Joo-yeon get closer, but Eun-ho wakes up to find Joo-yeon's employee card and goes to meet him.

Eun-ho smashes a mirror and faints. She doesn't remember anything about it. She tells the doctor that she has found happiness and doesn't want to abandon Hye-ri. Meanwhile, when Eun-ho and Hyun-oh deliver the news, a clip regarding two sisters reminds Eun-ho of her past and she panics in the newsroom.

Eun-ho wakes up to see Hyun-oh with her. She can't remember what happened after the elevator and figure out why he is with her. After seeing her doctor at Hyun-oh's request, she realises the Hye-ri inside her struggles to break free to hold onto the happiness Eun-ho doesn't have. Hyun-oh stays by her side as if they never broke up. Meanwhile, Joo-yeon can't get Hye-ri off his mind and rushes to see her only to be with Hyun-oh.

Hyun-oh's gambler father died in a fire accident when Hyun-oh was a minor. When Hyun-oh was about to be sent to an orphanage, the boss of Red Rainbow offered him a place to stay under one condition. Because of his complicated background, Hyun-oh always hesitates about marriage. Meanwhile, Hyun-oh's place of 9pm news gets replaced. It turns out that Hyun-oh exchanged his 9pm news position for Eun-ho's noon news position.

Eun Ho decides to live as Hye Ri one more time. Pretending to be Hye Ri, she participates in a dodgeball game with Joo Yeon on a sports day of Media N Seoul. However, Joo Yeon soon finds out that Eun Ho and Hye Ri are the same person. Meanwhile, Eun Ho and Shin Joong try to come up with an idea of how to help Hyun Oh get the opportunity to become the 9pm news anchor.

After hearing the news of Hyun-oh's marriage, Eun-ho's life starts to crumble. Because of her repeated mishaps and incidents at work, Eun-ho ends up stepping down from every show she's on, including the noon news, in which Hyun-oh gave up his dream for her. In the end, Eun-ho makes a big decision. Meanwhile, Joo-yeon and Hye-yeon go out to have udon together.

Eun-ho disappears and no one can get in touch with her for a month. Joo-yeon has been looking for Eun-ho so he even looks up Hyun-oh on the Internet and goes all the way to PPS to ask him about Eun-ho's whereabouts. He tells Hyun-oh he is dating Hye-ri, Eun-ho's other personality. Hyun-oh is utterly shocked to find out that Eun-ho is suffering from dissociative identity disorder.

Although he can't tell whether it's Eun-ho or Hye-ri, Hyun-oh takes her back home. He starts to take care of her and tries to talk to her, but she won't say anything back to him. After learning that she's now with Hyun-oh, Joo-yeon comes to meet Hye-ri. She's deeply moved by what Joo-yeon says to her. Meanwhile, Ji-on hands a piece of drawing over to Hyun-oh, which makes him realise his feelings for Eun-ho.

Eun-ho has returned to being herself and realises just how much she's missed everything about Hyun-oh. She shows up at the office, eager and ready to take on any task thrown her way. While her presence stresses Shin-joong out, he also feels a sense of relief having her back. One by one, opportunities start coming her way at work, but as always, good things come with a price.

Fear sets in after Hyun-oh escapes death, and the worry over Jae-yong's well-being renders him irremediable. Eun-ho stays by his side to console him but gives him the space he needs to recuperate. However, PPS is at its most vulnerable, unable to fill Jae-yong's spot for the 9 o'clock news. Meanwhile, Baek Hye-yeon jumps ship and joins PPS, leaving Media N Seoul out to dry, especially Joo-yeon, who begins to have a change of heart.