Chan, who surprisingly managed to make it to today's class last minute, sees his friend Kai and sits next to him. Seeing that he left his hungover body on the desk, Kai rolls his eyes at his friend and asks in a knowing tone.

Kai: You're hungover again, aren't you?

He immediately buries his head on the desk and mutters sleeplessly.

Chan: Don't start again Kai. My head is already hurting.