Yuuki Yuuna wa Yuusha de Aru: Washio Sumi no Shou 1 – Tomodachi S01

In the year 298 of the Era of the Gods, elementary school girls named Washio Sumi, Nogi Sonoko, and Minowa Gin, are tasked with the important mission. They must become heroes and fight against the mysterious enemy, Vertex, who attacks Shinjou-sama.