Ji Nuan did not lower her volume. She only smiled and said, "Dad, when I was young, do you remember when I connected the two phrases 'as guilty as a thief' and 'the walls have ears' in my assignment? I'm not sure why I ended up connecting them that way back then. But looking at it now, it seems like I finally have my answer."
The person by the door clearly understood Ji Nuan's meaning. She shrunk behind the door and thought to leave, but after standing frozen outside for a moment, she suddenly pushed the door open and entered the study.