The gifted apprentice mage under Frieren, Fern has earned the admiration of many for her mature approach to life, all whilst keeping her mentor in check.

Ever since Frieren: Beyond Journey’s End (Sousou no Frieren) graced our screens in 2023, a question has lingered: how old is Fern exactly?

Warning: Major spoilers if you haven’t watched or read Frieren: Beyond Journey’s End.

Orphaned in her youth due to war, Fern matured at a tender age to cope with the loss of her family.

Frieren: A Journey's End How hold is Frieren?
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How old is Frieren? Working out the character’s age in years

While her mentor, Frieren, possesses the ageless grace of an elf, Fern blossoms through the natural course of time, maturing in body and spirit as the narrative unfolds.

How old is Fern the mage in the Frieren anime?

Mage Fern from Frieren: A Journey's End
Credit: Madhouse

Time plays a major part in the development for the anime’s storytelling, and thus we get a rare glimpse into Fern’s character development as she ages.

She’s introduced to viewers for the first-time as a short haired nine-year-old towards the end of episode one, “The Journey’s End”

Frieren in Frieren" Beyond Journey's End in ONE Esports featured image for article "How many episodes of Frieren are there?"
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Complete Frieren episode list

As time goes on and master Heiter eventually passes away in episode two, “It didn’t have to be magic…”, Fern is 13 years old.

She ends the episode at 15 years of age when she and Frieren help an elderly herbalist maintain an old statue of Himmel.

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Credit: Madhouse
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Episode three, “Killing Magic”, is the first episode where fans learn how old is Fern as it’s used as a significant plot point to develop Frieren. Her mentor surprises her with a gift for her 16th birthday.

Fern celebrates her 16th birthday with Frieren in episode three, “Killing Magic”. This is where she receives her signature hair clip that she wears daily.

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When Frieren and Fern visit Eisen in episode four, “The Land Where Souls Rest”, Fern is 17 years old.

Fern is 18 years old in episode 18, “First-Class Mage Exam”, when she undertakes the first-class mage exam to gain entry to the northern plateau.

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READ MORE: Where to watch Frieren: Beyond Journey’s End right now