Yuuki Yuuna wa Yuusha de Aru: Washio Sumi no Shou Episode 1 English Subbed Episode Title:Sumi Washio.Episode Description:Elementary school students Sumi Washio, Sonoko Nogi, and Gin Minowa are all chosen as heroes to protect the Shinju from the Vertex. Thrust into their first battle against a water-based Vertex, the girls initially struggle to attack it, but soon manage to push it back with teamwork and guts. Following their narrow victory, Sumi works up the courage to ask Sonoko and Gin to be her friends.