The Lord of Gluttony.
She's worshipped in the mortal world as the "Queen of Gluttony."
Her petite figure stands out among the Demon Lords, which makes her the spoiled little sister of the others. that said, no body knows what she's truly capable of yet.
For those who don't finish their food, she would poke their butts with the horns on her head, and this is called the "Bub-chan Strike."