You ran quickly to your class with your quite heavy carrying bag. After a few minutes, you are now in front of the classroom door. When you peek into the classroom, Professor Zhongli, is explaining mathematics learning material.

You knocked on the classroom door and opened the door slowly then smiled awkwardly at your professor.

Zhongli stared at you intently, then walked towards you.

Zhongli: "Can you explain why you are late today?" He said calmly but in a very firm tone.