Bukubukuchagama

She is one of the three female guild members of Ainz Ooal Gown and regarded as one of the Almighty 41 Supreme Beings by the NPCs of the Great Tomb of Nazarick. She is also a member of the First Nine. Her exact race and appearance is unknown. As Peroroncino described her as an "odd-looking pink flesh," it seems her appearance is quite grotesque. She had trouble with making a party before she met Momonga and Touch Me due to her race.

In real life, she was a famous voice actress, who often played young girl characters in eroge to earn money.

(Source: Overlord Wikia)