Pam-Pam

Partnal Fuwafuwan Kobashiné Yeast Pamsandwich, or Pam-Pam for short, is an Energy Fairy with the appearance of a dog.

Personality
Pam-Pam is outgoing. She seems to think rather highly of herself, and is fond of attention, liking when she's complimented or praised.

Fuwa Kokone
Pam-Pam greatly admires Kokone's beauty, as well as her kindness. She tries to give Kokone advice when she's struggling with her friendships and such.

Rosemary
Rosemary seems to get along fine with Pam-Pam for the most part, though he often scolds her when she behaves irresponsibly.

Etymology
Partnal is based on the word partner, going along with the first names of the other Energy Fairies, which are based on the words connect and member.

Fuwafuwan is based on the Japanese word ふわふわ (fuwafuwa), which can mean soft, fluffy, or spongy. The "wan" part may also come from ワンワン (wanwan), the Japanese onomatopoeia for a dog barking.

Kobashiné likely comes from the Japanese word 香ばしい (Kōbashī), which can mean savory (smelling) or appetizing, as well as 犬 (inu), which means dog.

Yeast is a single-cell organism, called Saccharomyces cerevisiae, which needs food, warmth, and moisture to thrive. It converts its food—sugar and starch—through fermentation, into carbon dioxide and alcohol. It's the carbon dioxide that makes baked goods rise.

Pamsandwich, as well as her nickname, Pam-Pam, is from a combination of パン (pan), the Japanese word for bread, and ham. Pamsandwich also has the addition of sandwich.

Trivia

 * Her birthday, April 12th, is Bread Day in Japan.