Set in the divine epoch of year 300, Yuuna Yuuki leads a second‑year middle‑school life while belonging to the "Hero Club," where members confront an enigmatic entity known as Vertex. The series was broadcast alongside Yuuki Yuuna wa Yuusha de Aru: Washio Sumi no Shou Movie 2 – Tamashii and the adventures of their quests are chronicled in the daily episodes.
