光翼战姬～ExS-TIA F

Several years after the showdown with Naioro, strange news reaches the ears of Yuri Amakubo; the scientist behind the ExS-TIA system. On a remote island in the middle of nowhere was a woman who was the spitting image of her older sister Kaede, who had previously been defeated in battle. With Souma in tow, Yuri immediately sets of for this island to ascertain the truth for herself.

Strange news reaches the ears of Yuri Amakubo, the scientist behind the ExS-TIA system. On a remote island in the middle of nowhere was a woman who was the spitting image of her older sister Kaede. To uncover the truth, Yuri immediately heads to the island with Souma. There, they find Kaede—who remembers her name, but has lost all other memories. Surprisingly, she and Yuri possess identical pendants... Could this be the key to unlocking her past?