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.

Sousou no Frieren ranked second and sixth in the 2021 and 2022 Kono Manga ga Sugoi! for the Male Readers division, respectively. In 2021, the series won the New Work Prize at the 25th Tezuka Osamu Cultural Prize awards. The manga was nominated twice for the 45th and 46th Kodansha Manga Awards in the Shounen category before winning the 48th Kodansha Manga Award in the same category in 2024. The series won the 69th Shougakukan Manga Award.

The series has been published in English as Frieren: Beyond Journey's End by VIZ Media under the Shonen Sunday imprint since November 9, 2021. The series has also been simulpub digitally through VIZ Manga. It has also been released in Polish by Studio JG since May 12, 2023.