Rather than just turning the whole cast into cute blobs, they keep the girls in their normal forms and instead find themselves discovering the existences of these doll-like entities resembling every girl affliated with 765 at random times and in random locations then bringing them back to the 765 studio to shelter them all. When I think of babies with relevant roles in anime like something like Precure for instance, I don't expect much except looking cute and a lot of GOO GOO GAA GAA, but the PUCHIM@S are simply sized like babies and are pretty intelligent and sentient entities that come with their own quirks based on the 765 girls they're visually stylized from and I grew to like all of them quickly. The 765 girls are also here with their personalities and traits seen in the show accelerated a bit. Then the producer is here as well but his head is shaped into the letter P and character made whimsical so he's a goof with less presence here but it's played for laughs.
This show is essentially fun fanservice. It's fun seeing the girls interact with miniature versions of themselves as well as being generally happy. The interactions between everyone are executed well and with enough time for us to process the humor in their antics. Episodes are only 2 minutes (credits & next episode previews included) but they aren't bouncing jokes at you at a rapid pace or acting senselessly to make half-baked lackluster parody humor, the pacing is normal so when a situation is still ongoing by the end of an episode it's immediately followed up and multiple consecutive episodes flow together like one.
Remember, it's a chibi spin-off so don't overanalyze it, enjoy it.
