Ace NIS agent Jung Hae-seong is demoted after a mission failure. He goes undercover at a high school to locate King Gojong's missing gold, meeting his teacher Oh Soo-ah, who sees him as her lost first love, stirring old heartbreak.
Trailer
Cast
Seo Kang-Joon
Jeong Hae-seong
Jin Ki-joo
Oh Soo-ah
KM
Kim Min-ju
Lee Ye-na
Kim Shin-rock
Seo Myeong-joo
KY
Kim Young-ah
Soo-ah's Mother
Lee Seo-hwan
Kim Hyeong-bae
Jeon Bae-soo
Ahn Seok-ho
Park Se-hyun
Ahn Yoo-jeong
Jo Bok-rae
Go Young-hoon
YG
Yoon Ga-yi
Park Mi-jeong
PJ
Park Jin-Woo
Park Jae-moon
LM
Lee Min-ji
Kim Ri-an
OY
Oh Yong
Head teacher
LH
Lee Hyun-so
Han Seung-jae
SJ
Shin Joon-hang
Lee Dong-min
Maaari Mo Ring Magustuhan
Aksyon7.4
Good Boy
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Study Group
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My Perfect Stranger
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My Dearest Nemesis
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Dominion
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Twinkling Watermelon
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Shark: The Storm
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Fake Profile
Komedya7.6
Secret Lover
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Warrior Baek Dong Soo
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Spooky in Love
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Money Heist: Korea - Joint Economic Area
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Korea-Khitan War
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Hellbound
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Living Life
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Mouse: The Predator
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Blood Sisters
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Fifties Professionals
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Henry Danger
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My Name Is Gutierrez
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Man of Virtue
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