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The person coming down the stairs turned out to be Woo Jin’s clone. At first, Joon Hyeok denies that he’s Woo Jin because of the real Woo Jin who died. But as the clone tells him his memory of the day he disappeared, he apologizes. He says he’s sorry for letting him go there alone.
Yeo Jin-goo
Kim Woo-Jin
Kim Kang-woo
Kim Joon-Hyuk
Gong Seung-yeon
Han Jung-Yeon
Lee Gi-kwang
Lee Ho-Soo
Kwon Hyuk-soo
Detective Oh
An Woo-yeon
Kim Beom-Gyoon
Kim Joong-ki
Kim Kyu-Cheol
Min Sung-wook
Lee Hyun-Seok
Nam Myung-ryeol
Yoon Hak-Joo
Lee Hwa-Kyum
Secretary Shin
Seo Hyun-chul
Hong Jin-Hong
Song Young-gyu
Hwang Yong-Woo
Oh Eui-sik
Lee Dong-Soo
Kim Ye-joon
Kim Bum-gyun (young)
Jung Ji-hoon
Kim Woo-jin (young)
Jung In-sun
Park Min-young