He also takes a more heroic role by protecting a young girl named Last Order, the last Misaka clone who believes through the memories of the Sister clones who fought him, Accelerator is not bad person and actually never wanted to hurt the clones and tried frightening or telling them not to fight him, a theory Accelerator dismisses. In the aftermath of the incident, Accelerator is shot in the head by Ao Amai, damaging his brain and severely limiting the use of his power. Accelerator returns in the eighth novel whith an electrode made by Heaven Canceler that links his brain with the Misaka Network, with this he is able to use half of his powers but the battery of the electrode can only allow him to use them for 15 minutes and due to the injury he suffered, he is forced to use a cane. Toward the end of volume 13, Accelerator begins to "awaken" after nearly being killed by Amata Kihara and truly "awakens" in volume 15, gaining Black Wings, when fighting another "awakened" level 5, Teitoku Kakine showing he no longers needs to touch in order to use his powers. In the events of the 19th novel he meets Aiwass, a higher dimensional being, summoned to their plane of existence. Aiwass explains to him when AIM entities like him are manifested, Last Order is heavily strained and may die if left untreated. To help Last Order, who has collapsed from sustaining Aiwass, Accelerator follows Aiwass advice and heads to Russia during World War III in search of Index, unaware that he has met her before.
In Russia, after being ambushed by Russian mages, he acquires the "Goatskin", a mysterious document sought after by both Academy City and the Russian government that has the knowledge about the Archangels and Heaven, and later runs into a Misaka WORST clone, learning that Aleister intends to eliminate Last Order, now obsolete to create a new Misaka network. Despite being more powerful than the Misaka WORST clone, Accelerator is unable to bring himself to harm another clone after the Level 6 experiment and becomes mentally unstable after the clone attempts to kill Last Order and later tries to kill herself. Accelerator goes on a rampage until Tōma arrives where he turns his frustration regarding Last Order's condition onto Tōma and a fight ensues between the two. After Accelerator is defeated again, Tōma uses his Imagine Breaker to stabilize Last Order and leaves a note informing him of Index's true whereabouts. Later, he joins forces with Elizarinian soldiers and Misaka WORST to find spies in their country, and fought Archangel Gabriel along with Hyōka, where after studying the Goatskin, he learns to understand the angels language turning him into an angel as a side effect. With his new powers, he is able to decode one of Index's songs and was finally able to cure Last Order but is injured in the process.
Jidō Shoki?, "Automatic Writing"), will be activated to allow her to use magic to cast high-class magic attacks such as St. George's Sanctuary (聖ジョージの聖域 (セントじょーじのせいいき
