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E1
59 min 1. Episode 1
High school girls Lee Eun-bi and Ko Eun-byeol live miles apart and their experiences are vastly different, yet they share an uncanny resemblance.
E2
58 min 2. Episode 2
After ten days of frantic searching, Eun-byeol's mom receives a call from the hospital, where she learns her daughter doesn't remember anything.
E3
60 min 3. Episode 3
Yeong-eun's mom demands an investigation for the recent incident and alleged bullying, but the situation is complicated by Eun-byeol's amnesia.
E4
59 min 4. Episode 4
Eun-bi tries to find out what happened to Eun-byeol. After discovering a letter in her daughter's room, Eun-byeol's mom hurries to the House of Love.
E5
60 min 5. Episode 5
Eun-bi's confusing life is further complicated by a new transfer student, who keeps wanting to hang out with her group of friends.
E6
59 min 6. Episode 6
So-yeong schemes relentlessly against Eun-bi. Tae-gwang pretends not to be concerned despite being secretly worried about Eun-byeol.
E7
59 min 7. Episode 7
Eun-bi resolves to be more like Eun-byeol and stands up to So-yeong. I-an offers to help, but Eun-bi can't get herself to tell him the truth.
E8
60 min 8. Episode 8
Three teams in Eun-bi's class fail to turn in their group projects after someone tampers with their computers. Eun-bi suspects So-yeong.
E9
60 min 9. Episode 9
I-an goes to see Eun-byeol's mom to ascertain what happened to Eun-byeol. During I-an's absence, Tae-gwang and Eun-bi grow closer to each other.
E10
60 min 10. Episode 10
Feeling responsible for I-an's injury, Eun-bi tries to help him, but he pushes her away. So-yeong enlists her mom's help to get out of a tight spot.
E11
60 min 11. Episode 11
Eun-byeol's mom sees her daughter confronting another student. Tae-gwang tries to help Eun-bi from being forced to transfer to another school.
E12
61 min 12. Episode 12
While checking the school's security footage, Mr. Kim spots something shocking. Tae-gwang discusses Eun-byeol's situation with his father.
E13
60 min 13. Episode 13
So-yeong threatens to reveal the results of the handwriting analysis in front of the class. Tae-gwang senses something very different about Eun-bi.
E14
59 min 14. Episode 14
Eun-bi is caught between two places she considers home. I-an has mixed feelings for Eun-bi. Tae-gwang ponders what to do with the autopsy report.
E15
59 min 15. Episode 15
I-an tells Tae-gwang the real reason why he was angry at Eun-bi. While trying to repair her phone, So-yeong remembers the video that she took before.
E16
59 min 16. Episode 16
Eun-bi's family decides to move and start afresh. Eun-bi makes her feelings known to Tae-gwang and I-an, and Eun-byeol says her goodbyes.
She lost herself but found her other self.
After losing her memory in an accident, a bullied high school orphan finds herself in the place of an identical-looking girl who's gone missing.
Genres: Drama, Mystery
Stars: Kim So-hyun, Nam Joo-hyuk, Yook Sung-jae, Lee Cho-hee, Jeon No-min
