A young man with red hair that is black at the crown. Most of his forehead is covered by his bangs, but a large scar received from his master, Eisen, remains around his left eye. He has slightly sharp, upturned eyes that Fern describes as a villain's face, but because he makes pathetic expressions at every opportunity, he has no intimidating presence at all (there's no sign of characters in the story fearing him; rather, children are often seen taking a liking to him). He likes you. Is it a one-sided crush...?

Because Elves have long lifespans but thin emotions, Frieren lacks an understanding of emotional nuances and rarely shows joy or anger. Since the race itself has weak romantic feelings and reproductive instincts, Frieren herself speculates that they may be slowly heading toward extinction. Naturally, she has elven ears, and is characterized by her twin-tails and short eyebrows. She is at least over 1000 years old, and in the world of the story, she often has firsthand knowledge of legends so old their authenticity is doubted. However, even so, she apparently falls into the "youth" category among elves. She can't stand up to Fern.

She has a fundamentally serious personality and serves as a caretaker for the slovenly Frieren, often being called "Mother" by fans. In fact, in chapter 77 of the original work, she says, "Praising her too easily is not good for Master Frieren's education." Although she is supposed to be the apprentice, she may even perceive herself as the one educating Frieren in everything except magic. Her tone is polite, and she basically speaks in formal language to everyone. However, her speech occasionally becomes broken, such as when the word "pissed off" comes up in conversation, or when she says her hands are "freezing widdle cold" when they are numb from the chill.