One day, Hae-joo comes to PD Park, a YouTuber who runs a YouTube channel on unification, saying she wants to cry out for unification together. When he asks Hae-joo why she wants unification, she pulls out an unknown scroll.

Director IM Soo-jin graduated from the Korean Academy of Film Arts and is currently enrolled in the Graduate School of Advanced Imaging Science, Multimedia & Film at Chung-Ang University. Her directorial works include <Away from Home> and <Our Hope>among others.