Appearance: Biscuit is another cute girl in the anime. She wears her long hair in a jinky way and dresses a balloon skirt. But the fact is, she is a 57 year-old ProHunter who's been using Nen for 40 years. And I suppose you no longer wonder why she still looks young, do you?
Personality: Biscuit is one of the people who entered Greed Island with Gon and Killua. At first, she pretends to be mean by attempting to break the two boys' friendship. When she first talked to the kids, Killua simply ignored her and it really made her mad. However, when she found out that the two are not skilled enough to live to tell the tale in the game, she decided to help them. She is very kind to teach Gon and Killua all the things about Nen. As a long-time Nen user, her proficiency in battle is more than enough to give Hisoka pleasure. Biscuit Crueger was Wing's Nen instructor.