Kapitel 73: Thousand Vine Flower

Zhang Yi hurriedly looked at Yun Yan.

Yun Yan could not help but ask, "Zhang Yi, who was the first to tell you that your sister went to the washroom?"

Zhang Yi hurriedly recalled and said, "It's a girl named Li Mei."

Yun Yan asked again, "How's Li Mei's relationship with your sister usually?"

"My sister is an introvert and rarely interacts with others in school. Her classmates don't remember her that well either," Zhang Yi explained honestly.

Yun Yan nodded and smiled. "This Li Mei is most likely lying. I noticed previously that the teachers in Zhang Ying's class don't seem to have any impression of your sister. Logically speaking, no one would have noticed your sister going to the washroom."

Zhou Hao, Xu Ling, and the other students suddenly understood.

Xu Ling immediately asked the teacher to call Li Mei over.

Yun Yan asked directly, "Li Mei, did you go with Zhang Ying when she went to the washroom?"