Well might as well put out my hopes and dreams - Ririka is Beryl.
Seriously though, The closest sounding one she could be from the MV is Ririka. It might be too much kayfabe to hinder how much English she actually knows. Also I selfishly want to enjoy her content in English. But if she's in that's amazing. I'm more worried she's going to pop up in some random indie corpo before Phase 3.