Yuuki Yuuna wa Yuusha de Aru: Washio Sumi no Shou Episode 6 English Subbed Episode Title:Promise.Episode Description:Dragged into another battle against three more Vertexes, the girls take advantage of their new abilities and use the power of Mankai to defeat two of them. However, Sumi then discovers she has lost the use of her legs while Sonoko has gone blind in one eye. Despite concern over these inflictions, the girls continue to use Mankai to stop the remaining Vertex from attacking the bridge...