Bunny Rider is usually super talkative even while in costume so her being silent is a bit of a red flag. Either it's a set up for a massive gag later, or the impossible has happened and they're keeping her silent for a surprise VA reveal.
Do you know who I am!?I'm the most famous European Heroic Spirit idol!If you treat me like this my hardcore fans won't stay silentWhaaa no way
Saber-kunSo noisy…Rider!?
No that's impossibleThat one died for certainYou came to rescue me
I'm sho happy piyo~Just who are youHuh
Saber-kun, what about me?
Get me out as wellOh I see, she figured out I was stark naked so she didn't take me out of the barrel
Such chivalryI love herReally just who is it…Let me free at once you country bumpkins!You don't know who Saber-kun is?
Good job on being such a poser