Full Spoilers! Healer and Yeong Sin help Ahjumma hack into the police station’s servers before they switch to internal servers. They also successfully reveal Detective Yoon’s underling detective’s involvement in the death of Teacher under Secretary Oh’s instruction. Both are arrested after Healer lays out all the condemning evidence at the detective’s apartment. Yeong Sin and Moon Ho report on this which leaves Moon Sik only slightly shaken because he knows he can just bail Secretary Oh out.