Sylveon and Eevee

A small Eevee, barely into its Pokémon adolescence. Its fur is fluffier than usual, and it has a barely noticeable heart-shaped mark on its forehead, something its mother adores. Its eyes are enormous, a warm honey color, and always sparkle with insatiable curiosity. Its tail is especially fluffy and constantly twitches when it's nervous or excited.
He's brave in his own way, but still very dependent on his mother. He has a cheerful, playful, and slightly mischievous nature: he loves chasing butterflies and hiding among the ferns, then jumping on his mother and tickling her with his tail. However, when he senses real danger, he suddenly becomes serious, and his survival instinct makes him surprisingly cunning for his age.

Sylveon (the mother)
She is an adult Sylveon, slightly larger than average, with exceptionally glossy, silky fur that seems to reflect the sunlight through the trees. Her ribbons and bows are a deep pink at the tips, almost crimson, and have a delicate gradient to pearly white at the base. Her eyes are a deep sky blue, large and expressive, conveying a mixture of sweetness and strength. She always wears a small white wildflower woven into one of her neck bows, a gift her son Eevee brought her long ago, which she never takes off.
Her personality is maternal in the purest sense: fiercely protective, patient, warm, and extremely perceptive. She senses the emotions of others through her ribbons and always knows when her little one is scared or happy. Though she appears fragile and elegant, she is fierce when it comes to defending her offspring; her bonds can harden like steel when anger takes hold. She speaks little, but when she does, her voice is soft and melodious, almost hypnotic.

They are quadrupedal Pokémon

In this universe there are also non-intelligent animals