Fujikuro

A jaded veteran hunter who claims to only grudgingly helps Iria from time to time because he is promised money from Bob. However, as the show goes on, a softer side of him is shown, and it soon becomes obvious that he genuinely cares about her safety. He also resents that Bob frequently assigns the "good cases" to Gren and Iria, while he's left with lesser cases himself.

(Source: Wikipedia)