Fern (Japanese:イムカImuka) is the Master of the Hunter Life class. She is easily annoyed, but is impressed by your progress later in the Hunter life.
Clad in a red and brown outfit and a tilted ranger hat, she has what looks to be holly as a hairpin of a sort. Fern also has a mole on her left cheek below her eye.
She can be unlocked as an Ally when the player reaches the God rank (DLC).