um i just decided they have lore
bubu comes from a long line of sparkledogs but is genuinely obsessed with serious and boring things. they don't hate fun and randomness, but their passions lie in the mundane (even if they arent very good at it)
noonoo wants to be an emotional support dog, and wants to acomplish that with encouragement and advice. he's way too clumsy with his words and they get idioms/metaphors mixed up often.