C2368 Why Is It You the Invigilator

Zhang Xingyun heard the person behind him say, "Handsome, look at you, isn't linear algebra great?"

Hearing this, Zhang Xingyun was stunned. It wasn't because of the content in the middle, but because the voice sounded familiar.

If it wasn't his younger sister, who else could it be?

Zhang Xingyun was also drunk