John Smith

First seen contacting Sunah and Sunmi, telling them he is from the Department of Public Information on Dimensional Interference. He tells them he is aware of their psychic abilities and asks them to join him. He tells them that if they're interested, to find their headquarters, which he says is located at a crack in space-time.

He meets Sunah in the teacher's bathroom on the 2nd floor as planned, after Sunah's physical body has been killed and she now appears in the mirror along with John, who is dressed in a brown suit and wears a hat that covers his face. The two of them promptly leave after Sunah finishes speaking on Onyu.