Moses Chan: "Don't worry. For now, no one has suspicions about my identity".
Narrator: "Difficult to be a mole. Even more difficult to teach the students well. This time, what is the sir going to do?"
Narrator: "'Yes, Sir. Sorry, Sir!' April 18th @ 9:30pm".
Personal Note: He he.... The only promo clip in which Moses' vocals were not featured.... :P
*Credits to HKLOVE.org