第4話: リンカは東の養子である行方不明の姉妹から紫を守るために戦う
2014年8月2日 放送
Rinka decides to stand and fight back in order to rescue Murasaki. The enemy reveals herself to be Azuma's adoptive sister who had disappeared two years ago with her father. Big things may have been set in motion long before Rinka and Azuma realized. (Source: FUNimation)