Nathan focused his eyes on the properties part of the item and smiled.
"Bingo!"
[Properties: It can absorb a certain emotion and depending on the emotion that it absorbed, this sculpture can bring about physical changes and some unexpected effects.]
…
Nathan stared at it and said, "This is the most likely reason why this sculpture has become like this."
"Did you say something, Nathan?"
Irish was also focusing on the sculpture at this time that is why she didn't hear what Nathan just said.
Instead of answering her question, Nathan said, "Irish, you said that last night, before you sleep, you talked to this sculpture about your day, right?"
Irish nodded, "Uh-huh,"
"Was that the first time you did that, if not, when did you start doing so?"
While seemingly thinking, Irish said, "Hmm… Well, I basically started it the night of my birthday."