[All] An acceptable schedule for a Diamond airline rating

An aviation grade diamond that I have never heard of before

I heard that NCT Mark's airline rank is diamond

Just looking at the overseas schedules set for this year and next year, I can completely understand the airline ratings.

It seems like I'm really busy without even having time to breathe...

Even Mark is a member who exists in every NCT ​​universe😮

Mark, who always tears up the stage even though he's so busy, is really amazing...✨