In Part 1, Woo Jin realize that Beom Gyun is losing his memories. And at their old house, Woo Jin and Jeong Yeon finds something unexpected. In Part 2, Dong Geon tells Joon Hyeok that Woo Jin is alive. Joon Hyeok and Jeong Yeon go to a house guarded by Human B’s security team and finds Professor Han there.