Plue
In Rave:
Plue is a small, stout white creature—basically a three-foot-tall snowman with a carrot nose—who serves as the bearer of the Rave Stone and companion to the Rave Warriors. He's got a head that's a bit too big for his body and moves around with a dog-like quality, sometimes walking on all fours. The only sound he makes is "puun," though Griffon Kato has somehow figured out how to understand him.
His carrot nose is tougher than it looks—hard enough to pierce through skin, bone, and even Dark Brings when needed. On the flip side, it deflates when he's hungry and his whole body wrinkles and shrivels up if he gets too hot. He's obsessed with lollipops and gets easily distracted by insects and butterflies, or just falls asleep randomly in the middle of things.
Despite being small and fragile, Plue doesn't shy away from fighting. He'll throw stones at enemies or, weirdly, try to give them lollipops. He's fiercely loyal to his friends—he once sacrificed himself to protect Shiba Roses from the Overdrive—though he cries pretty easily about most things.
In Fairy Tail:
Plue shows up here as a Silver Key Celestial Spirit, basically a pet summon for newer mages. Lucy owns his key, which she picked up for 20,000 Jewels. He's got no real combat skills, so he's just there to be cute and keep her company. He's obedient, loves sweets, and has become close friends with Happy. The two of them team up to tease Lucy and Loke whenever they get the chance. He's also pretty apologetic by nature—he freaked out and apologized to Lucy after accidentally hurting her when Sherry was controlling him with magic.
Content compiled by AnimeList.moe from publicly available sources.