Credit to Ryuyeolstar for the rough translation. Hyeri & Junyeol were talking about one incident: MC (Noeul) asked HR how she was able to grab emotion to act the hard scenes of DS. She said she really had a hard time that she called a Teacher to help her. NE asks who the teacher was. She said it was RJY. At that time, RJY said he was shooting for another movie (this was before the broadcast of the series), he was not not familiar with her at that time (and he did not hear her calling. But he showed his phone to everyone telling HR was calling him. LOL She said she was having a hard time with the script and since he was just nearby, he went to her agency and met up with her. While they were talking, HR's agency CEO came with a guest. And they both greeted the CEO. Then the CEO said, "Hello..is he your acting teacher?" Again, that was before the broadcast so the CEO didn't know RJY. HR explained he's also an actor in Reply 1988, but the CEO didn't hear them and kept calling him Teacher. Later on, when RJY met the CEO again, he told him he was the Teacher of HR from before.