Eash set contains 1 of each.
Germusu are mini storage microbial pouches. They are made of plush and have zipper mouths that open up to store your stuff in their bellies, unless they throw up of course.
Germusu are about 4 inches long, big enough to store loose change, candy, keys, flash drives, headphones, money, all sorts of things! Eri (the red one) is 5 inches, big enough for credit cards and metro cards.
Pictured from top to bottom: Gou, Zoa, Achu, Mooger, Coli, & Eri.