Ji O returns to the lab where he lived as a child. An unexpected someone comes to meet Ji O and tells him a shocking truth. Meanwhile, Gu Reum finds a new lead on her search for her parents and continues her investigation. When she follows the lead, she winds up at a place she once visited before.
Kim Rae-won
Ji-O
Lee Da-hee
Ha Neul Ae Gu-Reum
Kim Seung-o
Yi-Son
Kim Sang-ho
Choi Jin-Hwan
Jin Kyung
Hwang Jung-A
Park Hyeok-kwon
Kim Cheol-Soo
Ahn Nae-sang
Ryu Joong-Kwon
Jeong Da-eun
Yoo-Na
Han Kyu-won
Kim Jin-Soo
Kim Min-gwi
Kim Tae-Oh
Go Jin-Soo
[Detective]
Moon Jung-dae
[Detective]
Lee Jung-ok
Kim Hwang-Shik
Ahn Chang-hwan
Won Yi
Lee Hae-yeong
Oh Jong-Hwan
Hwang Jae-yeol
Kim Yoo-Chul [Detective]
