Both Aruto and A.I.M.S. are called to a high school whose HumaGear basketball coach is nearing technological singularity while developing the mannerisms of a hot-blooded coach, which the school's faculty fear could become problematic if not he is not immediately rebooted. Meanwhile, Horobi gives a new HumaGear the ability to learn to enable it to become the ultimate assassin, whilst saving its data into the Dodo Zetsumerise Key. Before he can strike however, he is stolen by Yua, who then releases him to observe his actions. When the basketball coach HumaGear begins displaying sentience, Jin reveals that all the previous Magias that he created also attained sentience, which infuriates Aruto further. Yua gives Aruto the Freezing Bear Progrise Key to defeat the two Magias. While Jin recovers the Dodo Key, Yua makes off with the Mammoth Key.

After Isamu sustains serious injuries during his fight with Horobi, he is taken to the HumaGear hospital for treatment and placed in the care of a HumaGear surgeon. Complicating matters however, MetsubouJinrai.net continue their attacks, leading Fukuzoe to order all of the hospital's HumaGears to be shut down and forcing Aruto to choose whether to protect the life-saving androids or stop the rampaging Gigers. Learning of Aruto's indecision, Yua gives Is the Mammoth Zetsumerise Key, who uses it to access data from Hiden Intelligence's Zea satellite, revealing the existence of a power capable of matching the Gigers: the Breaking Mammoth Progrise Key. Is also discovers that leaked footage of the Assassin HumaGear transforming contains Yua recording it, though she later denies any knowledge of it.