So I decided to watch the C-ute video a second time. I finally understood them. I guess reading very slowly in unison with their heavy accent really made it confusing at first. It also looked like they were reading their lines as well. With Kikka, it sounded a bit more natural, but she also had help with Eric Fukusaki.
It'll be a challenge, but I'm keeping my expectations low. Hopefully it'll sound okay.