Knuckles the Echidna

Knuckles the Echidna (ナックルズ・ザ・エキドゥナ Nakkuruzu za Ekiduna) is a mascot in Snow halation pretty cure!. He is the echidna mascot of the group Vampop, which consists of Nishikino Maki, Minami Kotori, and Hoshizora Rin. He is the guardian of the Master Emerald, the biggest of the Chaos Emeralds, on Angel Island, so he isn't always with Sonic and Tails. He is also the sole descendant of the Knuckles Clan, who were all wiped out by Chaos.

Personality
"A loner by nature, Knuckles is independent, headstrong and serious, yet gullible and short-tempered to a fault. He is entirely devoted to his duty, spending most of his time on Angel Island protecting the Master Emerald, and rarely cares for anything that is of no importance. When his friends and others are in need of his help, however, Knuckles can always be relied on being willing to leave his post and prove himself a faithful and good-hearted hero. He is also one of Sonic's oldest friends and rivals."

- The Sonic Wiki (I'm tired sorry)

Episode 3
Knuckles finds Sonic the Hedgehog with Tojo Nozomi, Kosaka Honoka, and Sonoda Umi, who are now Pretty Cure. He's excited but a little concerned.

Songs
Knuckles' voice actor, Hideaki Takenada, has done multiple songs for his character. One of theme is a duet with Shiyomi Hatsutomi, who voices Maki Nishikino.
 * Unknown From M.E.

Duets

 * Red Exterior (with Shiyomi Hatsutomi)