Penne (ぺんね) is the pet penguin of the Yūki family and is an emperor penguin. The family's café, Penguin Cafe is named after Penne.
- Kingdom: Animalia
- Phylum: Chordata
- Class: Aves
- Order: Sphenisciformes
- Family: Spheniscidae
- Genus: Aptenodytes
- Species: A. forsteri
Penne is an incredibly sharp observer. He is a very smart penguin who is capable of several things, such as serving customers, babysitting, and using electronics. Penne is considered a true member of the Yūki family and Penguin Cafe is named after his kind and the Yūki family's obsession with it.
Mio admires Penne to the point of it being a secret crush, but Penne teases her occasionally by acting haughty and ignorant when around her.
Penne's family.Sometimes Penne ends up babysitting him.
Penne (ペんね) is a combination between the "Pen" from Penguin (ぺんぎん) and ne (ね), which refers to the fact that every Yūki household member's names end with a "ne".
- He shares his voice actor with Masamune Yūki, as well as with Johnny Bepp from the original Aikatsu! series.