C239 What Exactly Happened in the past

"Wenn Yan, I still have a question..."

"What?"

Ning Yin shook hands and asked the question she always wanted to ask, "Why did your sister Wenn Peiling call Wenn Peiyuan Big Sister?"

"Why else?" Wenn Yan curled his lips. "If my uncle's daughter doesn't call her big sister, what else can she call her?"

"I see..." Ning Yin nodded thoughtfully,..