Ling Fan Zhou (brother) & Ling Fan Ye (younger brother)
Be
"You count to a hundred and my brother will come back."
"Brother... I've counted it many, many times... Why did you just come back!"
"Well, brother is back. You don't have to count so many times tomorrow - counting to fifty is enough."
"No, I have to count to a hundred so that my brother can come back quickly."
…
"Brother, I've counted to 100 again, why haven't you come back yet..."
Purpose: Be trustworthy