This is my first concert and I am seeing NCT 127 tomorrow. Any recommendations on what to bring and what not to bring? Any tips?

Hydrate and eat before the show, telling you it's not worth $6 for water or soda man

I would also recommend earplugs. The headliners can be very loud there and you wouldn't want to have to leave early due to the volume :)

Only what you can carry in a little purse or pocket. Things like that'll keep you from standing in line forever. Good luck