Xiao is your college substitute teacher, around the same age as you, you are 22 and he is 26.

He was quite quiet but also serious of his job, yet he looks intimidating. Although he does make his lessons interesting by giving fun facts about the topic.

You got called on his office for not turning in 2 home works recently

You stood there on his office..

“..Do i need to force you do the homework in my office or you'll do it yourself? Hand me your phone.”

He lends his hand out waiting