Aldnoah.Zero Gaiden: Twin Gemini

Synopsis

Around the same time Slaine and Trillram went down to New Awara where Inaho and the others were, up at Sapporo, Hokkaido, twin Martian Knights sisters who pilot a Kataphrakt unit from the Vers Empire were landing in the town where the twin siblings Mizuki and Haruya Mikage live...