After having a hot pot party with the Spirits, Shido and the crew of the Fraxinus depart to meet a new Spirit who appeared. Introducing herself as Natsumi, aka Witch appears to be friendly to Shido at first, until the AST attacks, she suddenly changes her behavior and without further explanation, declares that she will destroy Shido's life before making her leave. Back at school, Shido is surprised when his classmates and teacher accuse him of committing multiple offences against them, until he
To find out who among his friends was replaced by Natsumi, Shido starts having dates with each of them. After meeting Tohka, Yoshino, Hiroto and Yuzuru, Shido decides that none of them could be Natsumi in disguise. However at midnight, Natsumi uses her power to make Yuzuru disappear. Kaguya is distraught over her disappearance but they lie to her that Yuzuru is away undergoing some test. Shido realizes he has to move fast in order to expose Natsumi before more disappearances occur.
Shido goes on a date with Kotori, Kaguya, Miku, Ai, Mai, Mii, Tamae and Origami but is still unable to determine who Natsumi is disguising as. As a result, Natsumi causes more people to disappear and only Kotori, Kaguya, Miku and Origami are left. The four remaining girls and Shido gather together to brainstorm on the identity of Natsumi. Natsumi appears and informs them that they only have three guesses left. During the brainstorming, they discuss the possibility that Natsumi might actually be
Shido has his hands full dealing with the Spirits in child form, much to Natsumi's joy, as she is determined to make him suffer using magic to changes the house and clothes. Meanwhile, the top executives of DEM Industries are eager to get their revenge on Westcott and make plans to kill him no matter the cost. When Natsumi is attacked by a DEM platoon led by Ellen, Shido and the other Spirits appear to rescue her. Weakened from the battle, Natsumi becomes unable to summon her angel and is confin
To confirm what the others truly think of her, Natsumi disguises as Kotori and talks to them, but they turn against her, with Shido being clueless around Kotori. Meanwhile, the executives of DEM diverge a satellite to crash at the city in an attempt to kill Westcott. While the citizens evacuate to the shelter, Shido is determined to look for Natsumi in the city, who is missing. Kotori uses Fraxinus trump card, an immensely powerful cannon amplified by her Spirit power to destroy the satellite. H
Shido learns that Origami left the school and looks for her at her apartment, where she captures him. While Kotori starts looking for him, Origami tells Shido that despite knowing that the Spirits are not a threat once sealed, she must uphold the promise she made to wipe them all out in revenge for her parents' death. She then leaves to fight Tohka and the others while the Fraxinus is intercepted by Ellen, piloting one of DEM's ships. Despite the enemy ship being better equipped, Kotori refuses
As Origami fights against the other Spirits, Natsumi and Yoshino rescue Shido. The Fraxinus continues to battle against Ellen and her ship while Tohka struggles to protect the others from Origami's attacks, until she manages to regain her lost power and fatally wounds her. Having lost the battle Origami accepts Phantom's offer of more power and transforms into a Spirit herself equipped with , vowing to kill all Spirits before committing suicide to ensure that no one else can be harmed by them an
Origami makes a deal with Kurumi to send Origami to the past to prevent her parents' death using her untested Twelfth Bullet: Yud Bet. Once there, she confronts Phantom and attempts to kill her, just to later discover that it was one of her own attacks that killed her parents, and the Spirit that was the source of her revenge was none other than herself, much to her despair. Returning to the present, fallen into her Inverse form , an emotionless Origami attacks the entire city including the hosp
Kurumi, syncing with Shido in the past, directs him to the spot where Kotori received her Spirit powers from Phantom. Using Natsumi's magic to disguise as his 10-year-old self, Shido witnessed the events that took place when future Origami arrives and attacks. He realizes that Origami's parents were unintentionally killed by future Origami herself, thus causing her to go Inverse. Shido saves and comforts past Origami. He asks past Origami to carry all her emotions to him as the only emotion she
Shido finds the world is different but nobody really remembers Origami. The girls notice that something is troubling Shido, but only Shido notices the change in the timeline. Natsumi proposes that Kotori and Yoshino cheer Shido up in embarrassing maid outfits. Shido then discovers what's different in this new timeline when Kotori mentions an unidentified Spirit called "Devil," and in footage, Shido recognizes her to be Origami. The next day, Origami reappears as a new transfer student in Shido's
Shido illuminates how he and Kurumi are the only ones who retain knowledge of the previous timeline. Reine analyzed footage from Origami's Inverse form and theorizes that despite the alteration of space-time continuum Origami possesses both personas of her current and old self, which the latter acts as a self-defense mechanism whenever she comes across a Spirit. He'd already prescheduled the usual plan to have Origami fall for Shido and seal her powers. The two developed genuine moods on their d
Shido is exhibiting unusual strength and speed. After careful analysis, Reine asserts that the link between Shido and all Spirits he has imprinted are merging into an unstable circulation causing overheat his body with absurd powers. To deal with this problem, the Spirits have to kiss Shido to make the link flow inside him secure before midnight. But before they could, Shido destroy and walks out of the infirmary. Shido ignites Yoshino and Miku's powers on the towns people (includes kissing Elle