An anime adaptation of Frieren: Beyond Journey’s End (Sousou no Frieren) has been officially confirmed. The series follows the titular Frieren who was part of the Hero’s party to defeat the demon lord. However being an elf, Frieren outlives all of her friends.
When the hero Himmel finally dies of old age, Frieren goes on a journey to Aureole where spirits dwell to meet him once more. Along the way he’s accompanied by Fern, a young mage who was raised by the priest Heiter, and Stark who was trained by the warrior Eisen; both Heiter and Eisen were part of the Hero’s party with Himmel and Frieren.
— 『葬送のフリーレン』アニメ公式 (@Anime_Frieren) September 13, 2022
The demon king has been defeated, and the victorious hero party returns home before disbanding. The four—mage Frieren, hero Himmel, priest Heiter, and warrior Eisen—reminisce about their decade-long journey as the moment to bid each other farewell arrives. But the passing of time is different for elves, thus Frieren witnesses her companions slowly pass away one by one.
Before his death, Heiter manages to foist a young human apprentice called Fern onto Frieren. Driven by the elf’s passion for collecting a myriad of magic spells, the pair embarks on a seemingly aimless journey, revisiting the places that the heroes of yore had visited. Along their travels, Frieren slowly confronts her regrets of missed opportunities to form deeper bonds with her now-deceased comrades.