The problem with the ticket of Koda Kumi tour in Singapore

[holy_arrow]

"Overnight queuing is discouraged. Doors will only be open at 7pm

Entry will be made according to SISTIC's serial number printed on the tickets only."

If I enter the concert soon, I can get the good seat ?
If not, what will my seat depend on ?
I really want to have the first row

p/s: my ticket is bought as the Kuuchan fanclub account
This is the first time I could meet Koda Kumi. So exciting !