"What exactly is an obsessive-compulsive disorder?" Lei Pili had never heard of such a term before.
"It's about putting things in their fixed places," Yan Yan explained to Lei Pili.
"Are you saying that each pair of your shoes needs a fixed spot? What if you buy too many and can't fit them all?" Lei Pili was curious.
"That situation won't occur. If my closet's shoe racks are full, I would get rid of a pair before buying new ones," Yan Yan's principles were very clear.
"Then, if you make shoes in the future, would you also throw them away?" Lei Pili continued, curious.
"Yes, of course. No destruction, no construction, right? People need to progress. If one is complacent and won't let go of their creations, then they can only…" Yan Yan paused here.
"They can only what?" Lei Pili prompted timely.
"Only move to a house with a bigger closet then. Hahahaha, straightforward and efficient is truly the best," Yan Yan commended his own idea.