is a Japanese manga series written and illustrated by Haruomi Tomotsuka. It was originally published as a webcomic on the author's Twitter account in October 2021. It later began serialization on Kadokawa's ComicWalker and Nico Nico Seiga manga websites in March 2022. An anime television series adaptation produced by Asahi Production is set to premiere in July 2026.
In a town in the mountains, there is the legend of a half human and half snake creature called the "Yamatagi Madara" that once terrorized the town. The town considers entry into the western mountains to be forbidden because a shrine dedicated to the Yamatagi Madara is there and it is feared that anyone who trespasses into this area will be cursed. Siblings Hinata and Kaoru, from the family that governs the western mountains, visit the area out of curiosity. There, they meet a demon with the upper body of a shrine maiden and the lower body of a snake. Like the legend, it has a terrifying appearance, but the siblings become friendly with it and begin calling it "Dara-san".
Written and illustrated by Haruomi Tomotsuka, Dara-san of Reiwa was originally published as a webcomic on the author's Twitter account on October 9, 2021. It later began serialization on Kadokawa's ComicWalker and Nico Nico Seiga manga websites on March 30, 2022. The series' chapters have been collected by Media Factory into seven volumes as of December 2025. The series is licensed in English by Yen Press.
An anime television series adaptation was announced on December 11, 2025. The series will be produced by Asahi Production and directed by Masato Suzuki, with Noboru Kimura and Yasunori Yamada handling series composition, Koichi Kikuta designing the characters, Rei Ishizuka composing the music and Masaki Terasoma handling narration. It is set to premiere in July 2026. The opening theme song is "Dara Daraâ¡Dancing" performed by the main cast members.
A voice comic was released on the Kadokawa Anime YouTube channel on February 24, 2023. It contains the performances of Fairouz Ai, Aki Toyosaki and Minako Kotobuki.
In commemoration of the release of the second volume, the series had a collaboration with Fushiashikumo's The Great Snake's Bride manga series.
The series was nominated for the 8th Next Manga Awards in the web category in 2022 and was ranked 14th out of 50 nominees. The series was again nominated and also ranked 14th the following year. The series was also ranked 12th in the 2024 edition of Takarajimasha's Kono Manga ga Sugoi! guidebook for the best manga for male readers.
The manga is also recommended by manga artist Rei Hiroe.