S1·E8 Off to Space We Go: Planet Kennel is Woofderful!

The girls arrive on the planet Kennel, where they meet three dog-like aliens named Doggy, Maggy, and Neggy. There, they discover the Libra Star Color Pen being treated like a sacred treasure by Doggy's people, leading Elena and Prunce to clash over whether they should take it from them. As Kappard arrives to try and take the pen for himself, Prunce, prioritising Elena's safety above all else, uses a fur-growing potion to protect Doggy's group as they retrieve the pen, allowing Elena to defeat Kappard. Afterwards, the planet's elder, having fixed the planet's true treasure, allows the pen to go with the girls, who revive the Libra Star Princess.