[talk] Kim Hye-yoon hands Jang Dong-ju the photo-discovery sword... Tension reaches a peak with her shocking choice.

From today on, I am human, but in the final episode, Eun-ho personally handed the photo assassination sword to Hyun-woo Seok and asked him to stab her. The development must have been really suffocating.
So, it turned out that Siyeol stabbed him again when he changed again.