*listening to Cute Jewelries 02 bonus track*
Oh god, this is too moe for my heart. Twenty-six minutes of Cutes being Cute, especially my favorite Cute. Although Mayu briefly loses it in a few moments, like when she copies Ranko's "savor the darkness" and wants to savor it with Producer, or in the following (paraphrased) exchange.
Kanako: Chieri is really cute, so Chieri doesn't need to worry about anything.
Sae: Come to think of it, Producer-han said something similar.
Mayu: PRODUCER-SAN SAID WHAT?
Sae: Mayu, you're a little close... I mean, Producer-han said Chieri's choppu was nice. (they still remember that joke?)
Mayu: Chop, you say... Chop... Chop... *making chopping noises in the background*
Anyway, I'm getting ahead of myself. To summarize, as far as I can understand, it's about Chieri lacking confidence in her defining traits as an idol. To compare, she sees Mayu is the ideal girly idol (can cook, used to be a model, etc.), Sae is the Kyoto idol, Kanako is the sweets idol, Sachiko is... Sachiko-like (that's seriously what she says, but Sachiko is perfectly fine with that answer), and so on. Meanwhile, Chieri is just... cute. Though they throw out ideas like she's the clover idol, or how she's like a bunny (but she doesn't eat clovers).
So the other idols have Chieri start copying other idols. They actually broke the fourth wall this time when Sachiko does the usual Staff-san things in the interviews, and they actually asked, "Where are those sound effects coming from?" It turned out Mayu borrowed Staff-san's equipment.
So they started with Sae having Chieri repeat her own lines, like Producer-han. Then they move onto Ranko's "savor the darkness", Kirari's "nyowa~" and Kirari--er, "Chieri beam~", and so on. It's really adorable.