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The titular protagonist of Sousou no Frieren.
She is the Mage of the Hero Party and traveled alongside Hero Himmel, Warrior Eisen, and Priest Heiter in a ten-year journey to defeat the Demon King.
Several years later, she took on another journey with Warrior Stark and her new disciple Mage Fern, eventually reunited with her now elderly former party members. She is often known as "Frieren the Undertaker" (the title of the series).
Frieren is a petite female elf with green eyes and long white hair tied into twintails with parted bangs. Like all Elves, she has large, pointy ears.
She wears a striped black and white shirt, along with a white jacket with gold embellishments tucked into a matching white skirt with a black belt. Over her jacket, she wears a gold-trimmed white capelet with a red gemstone on her high collar. She also wears black pantyhose and brown boots, and a pair of gold and red earrings on each ear. She also carries a mage staff.
In the past, she had her hair down and wore a simple white dress.
In the anime, she's voiced by Tanezaki Atsumi in Japanese and Mallorie Rodak in English.