is a Japanese light novel series written by Hifumi and illustrated by Kurihito Mutō. It was serialized online from January 2015 to September 2019 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Earth Star Entertainment, who published fourteen volumes between September 2015 and December 2019 under their Earth Star Novel imprint. A manga adaptation with art by Fuh Araki has been serialized online via Earth Star Entertainment's Comic Earth Star manga website since April 2017 and has been collected in thirteen volumes. An anime television series adaptation produced by Studio Elle is scheduled to premiere in January 2027.
Plot After failing his entrance exams for magic university, young Asley drank the "Ancient Elixir", a concoction he had created, and gained immortality. Asley then secluded himself for 5000 years, studying magic and sorcery. When he awoke, he had become well-versed in ancient magic and began to enjoy his second youth.
Characters
Media Light novel Written by Hifumi, The Eternal Fool's Words of Wisdom: A Pawsitively Fantastic Adventure was serialized on Shōsetsuka ni Narō from January 9, 2015, to September 30, 2019. It was later acquired by Earth Star Entertainment who published fourteen volumes with illustrations by Kurihito Mutō under their Earth Star Novel imprint from September 15, 2015, to December 14, 2019.
Manga A manga adaptation illustrated by Fuh Araki began serialization on Earth Star Entertainment's Comic Earth Star manga website on April 27, 2017. The manga's chapters have been collected in thirteen volumes as of February 2026. The manga adaptation is licensed in English by J-Novel Club.
Anime An anime television series adaptation was announced on February 5, 2026. The series will be produced by Studio Elle and directed by Keisuke Ōnishi, with Kurasumi Sunayama handling series composition, Yumiko Mizuno designing the characters, and Yuri Habuka composing the music. It is set to premiere in January 2027. Crunchyroll will stream the series.
Reception By February 2022, the series had over a million copies in circulation.
References
External links at Shōsetsuka ni Narō