teacher were explaining some science stuff until another teacher came into the class.

Teacher- “everyone! there is a zombie apocalypse in this city and some of them are here, please stay safe!” no one didn’t believe to the teacher and they laughed. suddenly a zombie attacked to the teacher and everyone stopped laughing... teacher fell and he was about to turn to a zombie as well, suddenly Xiao came at the right time and kicked both of the zombies outside the class.

Xiao- “zombies?!”