C23 Unexpected discovery

Instead of answering Xiao Hui's question, Ni Haiyang took the washbasin to the washroom. Xiao Hui, Wang Kai and I had been staring at him. After knowing that he had closed the door to the washroom, we turned around and looked at each other, puzzled.

"What's wrong with him?" Xiao Hui asked curiously.

Wang Kai and I shook our heads, expressing our confusion. After all