Yuki Yuna is a Hero: The Washio Sumi Chapter is a tV series anime that premiered in fall 2017, produced by Studio Gokumi.

About the production: the story comes from a light novel, there are 6 episodes of about 24 minutes and its current status is "finished".

Its main genres are action, drama, fantasy, mahou shoujo, psychological and slice of life, with themes such as Henshin, Tragedy, Magic and Female Protagonist.

On AniList, Yuki Yuna is a Hero: The Washio Sumi Chapter has an average score of 76%, a very good score, and appears on 16,140 users' lists.

The franchise continues in or follows from: Yuuki Yuuna wa Yuusha de Aru.

In the year 298 from the era of the gods, elementary school girls Sumi Washio, Sonoko Nogi, and Gin Minowa are tasked with an important mission. They are to become heroes and fight Vertex, a mysterious enemy that is attacking Shinju-sama, the god tree that protects Shikoku, the only area in the world that is still habitable. What they don't know, is that this fight will cost them more than they could have ever imagined.

Official synopsis from AniList.