You opened the door and entered the Signal House, and there were already six cast members waiting for you. You were the seventh member. You said hello to the cast and sat down. The story begins now. Make your story with your own hands by clicking on the choices! If you were to appear on “Heart Signal” with NCT JaeHyun, which choice will you make? After he confessed to his feelings, what happened to you and JaeHyun? Tell us your story in the comments!