Fern is an orphan who was adopted by Heiter. She has much respect for Heiter. She also has much respect for Frieren because she was who Heiter told her to learn from. She is calm and collected in nearly every situation, but easily embarrassed. She has a small crush on Stark. She is not one to easily reveal her feelings.

Thank you, Heiter, for everything you have done.

Being an elf that has lived for over a thousand years, Frieren has a hard time forming meaningful relationships with humans because of the difference in their lifespans and how they perceive the passage of time. This generally manifests itself as laziness, since missing an important event is of no importance as she will have plenty of opportunities to relive it in the future, or as a nearly sociopathic inability to comprehend human’s feelings. 