Nico

Nico is an infant Demon who is the daughter of Beelzebub III and younger sister of Beelzebub IV.

Appearance
Nico, despite being several years younger than Baby Beel is the same exact size. She has a small ponytail to the right side of her head. Her pupils and irides are larger than his, and she has a pacifier the same as her brother.

Unlike Baby Beel, Nico wears clothing which consists of a small top with a picture of a teddy bear on the back and a pair of pants.

About
Nico is Beel’s and En's younger sister. She is the youngest sibling in the family.

Tatsumi Oga
She's Oga's youngest daughter. Like his older brother, Beelzebub IV, she treats Oga with a lot of respect and admiration.

Beelzebub IV
She's just like his older brother, both have the same looks, and they have the same personality, meaning that they really similar. She might probably cry a lot, just like his older siblings.