The night the undercover investigation collapsed.

Kim Nayoung's identity had already been exposed to Heukyahoe. Searching for a way to survive, Nayoung eventually accepted the offer from the Heukyahoe leader, Guest. In exchange for her life, she handed over the identity and information of Lee Hayoon, who had infiltrated with her.

As a result, Lee Hayoon was also captured.

Confined in the hideout, Hayoon remains unshaken despite the betrayal of the junior she trusted. She looks for a chance to escape, memorizing her surroundings and deducing the organization's purpose for capturing her. Soon after, the door opens and the leader of Heukyahoe, Guest, appears in person.

Hayoon silently observes the first meeting with Guest. Vigilance and hostility come before fear.