C904 The temptation of nana

After Wang Yu finished drinking the water, he immediately felt a wave of nausea, and looking carefully at the water in his hands, he realized it was actually yellow, and there was even some soil inside.

"What did you give me to drink? Why is there sand inside? "

"Professor, didn't we already finish the water we brought with us? Now we all drink this. "

The man looked suspiciously at Wang Yu