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Episode 1
Looking for a new apprentice, music professor Kang Joon Hyung discovers Lee Sun Jae who has raw talent and ability. Sending Sun Jae to his wife, Oh Hye Won, for an evaulation, a volatile relationship is about to begin between them.
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Episode 2
Hye Won auditions Sun Jae and finds him to be a gifted and thrilling pianist.
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Episode 3
Sun Jae prepares for the entrance exam into Seohan University's piano major.
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Episode 4
Da Mi appeals to Hye Won to help get Sun Jae released from jail after he nearly assaults a lady.
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Episode 5
With Sun Jae staying at their home, Joon Hyung preps him for his audition while Hye Won tries to avoid his advances.
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Episode 6
Despite Hye Won trying to maintain a professional relationship with Sun Jae, she still finds herself drawn to him.
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Episode 7
Joon Hyung is becoming suspicious of the relationship between Hye Won and Sun Jae which seems closer than it should be.
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Episode 8
Hye Won becomes jealous when she sees Sun Jae with Da Mi eating dinner and takes it out on him.
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Episode 9
As Hye Won and Sun Jae become closer, she ends up being assigned as his official instructor.
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Episode 10
Sun Jae performs for his biggest audition and Hye Won has to deal with her boss being caught for illegal financial activity.
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Episode 11
Hye Won tells Sun Jae to not meet or call her for awhile after she receives a text from a man who knows about their secret meeting place.
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Episode 12
Joon Hyung tells Hye Won to end her relationship with Sun Jae. Meanwhile, Sun Jae looks into applying for school abroad.
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Episode 13
In the midst of her legal trouble, Hye Won tries to clean up her mess with Sun Jae.
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Episode 14
Hye Won finds it harder to pretend to have a loving marriage with her husband.
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Episode 15
Hye Won tries to gain the upper hand in her legal war against the Chairman and Chairwoman.
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Episode 16
Hye Won must make a decision that will affect the next decade of her life.