In an attempt to understand the information Miharu has imparted to him, Yushiro returns to his family home to confront his parents. At his ancestral home, Yushiro meets with his instructor, Sorachi, who leads Yushiro into an abandoned storehouse. There Yushiro discovers the cryogenically preserved body of Sorochi's son Ku-ya as well as a body that is probably his, along with the slouched form of a formidably-advanced robot, known as the Kugai. Meanwhile, Yushiro's sister, Misuzu, and Ataka, one of the female TA pilots, have followed Yushiro to the site, where they are surprised by the sudden appearance of Miharu and another of the symbol weapons platforms, known as Ishtars.
豪和総研をシンボルのMF部隊が襲撃し、豪和が持つ人工筋肉のオリジナルを奪取しようとする。一方、ミハルからの連絡で、豪和憂四郎という人物が8年前に死んでいたことを知ったユウシロウは、母親の雪乃に自分は何者なのかと問いただす。
