Wing

Wing is somewhat absent-minded about his appearance and has a fairly modest demeanor. However, he is more than he appears. He is an assistant master of Shingen-ryu kungfu, a former student of Biscuit Krueger, and a skilled user of Nen. He is an Enhancer whose nen ability has not been revealed.

Heavens Arena Arc
Gon and Killua first encounter Wing and his student Zushi when they are competing in the Heavens Arena. Having deceived the pair about Nen prior, Wing begrudgingly takes on Gon and Killua as students after the two reach the 200th floor such as to protect their lives from those who use Nen. Wing gently jolts open Gon's and Killua's aura nodes and trains them seriously for several months in the Heavens Arena. He punishes Gon for playing around during his match and restricting him from seeing Hisoka's match and using Nen for two months. After the pair finishes learning the basics, he congratulates them as they pass the secret part of the Hunter's Exam, revealing he is their Examiner and that most of the other Hunter Examinees that passed are learning Nen as well.

Greed Island Arc
His next appearance is during the Yorknew City arc when Gon calls him for advice in developing a Hatsu ability. Wing and Zushi were still at Heavens Arena at the time.

New Hunter Chairman Election Arc
Wing makes an appearance at former Hunter Association Chairman Netero's funeral.