The Gate of Destruction, which has regained its original form, causes a "forbidden fruit" which bestowed omniscience and omnipotence before Mutsugi's eyes. She promptly consumed the "fruit", attaining power boost she sought yet corrupted her at the same time. Ryuga Dogai, Souma Shirahane, and Koyori stand against Mutsugi, who is trying to use a technique to purge humanity of their Inga. What is Inga? What is a human? The battle for the mission of the protector begins.