I'd be grateful for a lifetime if you help me on this one

[Usopp1985]

Hi all,

It's so long I am trying to find who this girl is (she's not Premium Link Upgrade like stated in the title of the video) :

Premium Link Upgrade

I even tried to find out who is the guy at 11.15 to check his videos, but also don't know his name.

Could you please please help me on this one ?

Thank you very much for your time

S.