Fern has a mature personality as a result of her upbringing. Despite her outward motherly nature, Fern is easily upset and can act childish when others don't cater to what she wants or offend her, and in extreme cases, pouting and completely ignoring them when they attempt to reconcile, though this can be resolved through actions like treating her with food and abiding by demands she makes. Fern is also a Glutton and likes to eat lots of sweets, donuts, burgers, you name it she’ll eat it.